Moisture - DUKA Ventilation

Get the best out of your basement

Morten Simoni — Mon, 01 Dec 2025 08:38:17 +0000

Black Edition

Get the basement of your dreams

Live your dreams in a basement with a healthy indoor climate

Utilise your basement square metres

A healthy indoor climate in the basement is essential if you want to utilise the full potential of your home. Many basements sit unused or only serve as storage rooms because humidity, cold and poor ventilation make them uncomfortable to spend time in. But with the right indoor climate, basement square metres can be transformed from wasted space to valuable square metres.

When moisture and bad air are removed and ventilation is optimised, you create an environment that is both healthy and comfortable. This means fewer mould problems, better air quality and an overall healthier home to live in.

At the same time, the value of the property increases significantly when the basement becomes an area you can actually use. A healthy indoor climate opens the door to new possibilities: extra living space, home office, hobby room, fitness centre, guest room or simply dry, comfortable storage space. The square metres take on a whole new function and buyers see great potential in a basement that is dry, ventilated and in good condition.

A good indoor climate in the basement is an investment that improves the health of your home, provides more usable space and creates economic value.

DUKA One

Create a healthy indoor climate in the basement - easily, efficiently and without major renovations

Ensuring a healthy indoor climate in the basement can quickly seem like an extensive and unmanageable project. Moisture, bad air and a stagnant indoor climate make the basement a place to avoid. But with DUKA One, With an efficient one-room ventilation solution, it becomes much easier to create a comfortable and healthy basement environment.

The DUKA One is mounted directly in the outer wall and requires minimal installation. The unit automatically switches every 70 seconds between sucking out stale, moist air and blowing in fresh, filtered outdoor air. This continuous air exchange gives the basement the breath of fresh air it often lacks - creating an indoor climate that is both healthier and more stable.

When air is constantly in motion, it is much harder for moisture to stick to walls, floors, furniture and stored items. This significantly reduces the risk of moisture damage, mould and mildew. At the same time, you avoid the typical “basement odour” that often settles in clothes, furniture, cardboard boxes and other stored items. With fresh air, the basement becomes a usable and comfortable space again.

A healthy basement indoor climate allows you to utilise the full potential of your home. Once the humidity is under control, the basement square metres can suddenly be used for hobby rooms, storage without worries or as extra living space - and the value of the home increases accordingly.

With DUKA One you get a simple, energy-friendly and efficient solution that gives your basement new life. An investment that both improves the health of your home and increases the possibilities of using the basement actively in everyday life.

Read much more about DUKA One here

Black Edition

When it doesn't always have to be white

Many choose white as the standard colour for ventilation solutions, but with Black Edition you get the benefits of advanced ventilation and Aesthetic minimalism. The black colour makes the unit more neutral - especially in modern, dark or stylish interiors - and prevents the fan from dominating the room. The Black Edition fits perfectly in rooms with dark walls, woodwork, concrete, concrete ceiling or industrial design, but works equally well in classic homes where discretion is a plus.

At the same time, you get all the functionality of the DUKA One: heat recovery, energy-efficient operation, low noise level, easy installation and flexible supply air settings. A black ventilation screen makes it more attractive to place the unit in living rooms, bedrooms or basements - yes, even in basements where you want a more “finished” and residential feel.

DUKA One Pro 50 S Black EditionDUKA One Pro 50 S Wi-Fi Black Edition

Unleash the good indoor climate

Fresh air, good tones and the feeling of freshness

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New life for a damp basement

Morten Simoni — Fri, 27 Jun 2025 06:44:59 +0000

Basement

New life for a damp basement

Trine and Mikkel live in a master builder's villa from 1935 with a large basement. They would like to use the basement for storage and creative space. Unfortunately, they have a very familiar problem in their basement - moisture. And moisture is not the only challenge the basement presents. Water has found its way into the basement several times and they have also had mould.

The basement has therefore undergone a major transformation with mould control, new windows, installation of a heat pump, new tiled floors, treatment of walls with breathable materials.

Although they have done many things to make the basement usable, it is still very damp. One of the ways they experience this is that the textiles Trine has stored in the basement for their creative projects feel damp and clammy.

“The basement is now the place in the house with the best indoor climate” - Mikkel

Simple and easy installation

So the next step in their ‘Get the basement back’ project is to install ventilation. Trine and Mikkel have therefore chosen to install 3 DUKA One Pro 50 S Wi-Fi units with a brick red outer screen that matches the house.

A diamond drill was responsible for drilling the hole. Mikkel did the rest of the installation himself.

A completely different basement

After installing DUKA One in their basement, Trine and Mikkel can feel a clear difference and say that everything just works.

The basement is clearly the room in the house with the most fresh air, and one of the ways we can feel it is that the textiles that Trine has stored in the basement are no longer damp. And in general, they are amazed at how well they work.

We kind of want to just install it in the whole cabin now - Quote Mikkel

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DUKA One provides good indoor climate in Fillip's Tiny House

Morten Simoni — Thu, 26 Jun 2025 12:00:36 +0000

Tinyhouse

A new and well-insulated tinyhouse meant that moisture could not escape.

“We solve that with DUKA One” - Filip

Filip and Tina's new tinyhouse has a cosy kitchen, a small living room, a toilet and a bedroom, which together create a beautiful and compact home. This will be the couple's new home after moving out of their apartment in Aarhus. But even before their tinyhouse was finished, Filip could quickly see that dew was gathering on the windowsills and that the air was very dense.

Why should it be the DUKA One S4 Plus Wi-Fi model?
The advantage of choosing a smaller model like the DUKA One S4 Plus or DUKA One Pro 25 S for a tinyhouse or something like a holiday home is that they have a core and motor of just 165 mm, so it can fit in thinner walls.

Easy, fast and high quality

The solution to the high humidity can easily be solved by opening windows, “but the idea of insulating well was not that all the heat should just escape through an open window,” says Filip. Therefore, the solution was DUKA One, which is easy, fast and made in high quality.
“It's nice when you work with quality products,” he says as he prepares the inner screen for installation.

Filip talks about several benefits of DUKA One:

It works and is easy to install and operate
A scalable solution so you can easily add extra DUKA One units later if needed.
Quick and easy without breaking the budget.

No possibility of complicated pipework

As this tinyhouse has a flat roof, there is no room for pipework, so a solution that only requires a hole in the outer wall is needed. This means installation is straightforward and hassle-free. A wet room DUKA Ventilator has also been added to the toilet so that the wet room in the home does not give the neighbouring rooms high moisture levels.

Wi-Fi

Weekly programme and Wi-Fi is a must“

There was no doubt that the Wi-Fi model was the right DUKA One to go with as it offered several advantages. With the Wi-Fi version, it's easy to connect multiple devices wirelessly, check if they are running in the DUKA Smart App and create a weekly programme for the devices.

The weekly programme in particular is a hit, as it doesn't matter in a compact home when the humidity level is high. Therefore, it makes sense to be able to set DUKA One to change speed depending on whether someone is home or empty.

Investment

Consider investing in a DUKA One solution

We recommend DUKA One, a ventilation solution that ventilates the room 24 hours a day. For 70 seconds, the unit sucks out stale and humid air, storing heat in the unit's ceramic core. After 70 seconds, the system's motor reverses and blows in fresh air that is heated by the ceramic core. This constantly changes the air, reducing particles and moisture, while saving on heating bills as the heat is recycled. DUKA One is mounted directly in the outer wall and can be installed wherever there is a need for ventilation.

Find the right DUKA One here

The post DUKA One provides good indoor climate in Fillip's Tiny House first appeared on DUKA Ventilation.

DUKA One provides a good indoor climate at Bramming gymnastics & sports secondary school

Morten Simoni — Thu, 26 Jun 2025 10:43:06 +0000

Bramming gymnastics & sports after school

DUKA One provides a good indoor climate at Bramming gymnastics & sports secondary school

“We experience less humidity and it smells better in the rooms” - Otto, Caretaker

As part of an energy renovation at Bramming gymnastics & sports secondary school, they faced a ventilation challenge. For a long time it has been okay with a fresh air vent, but after new and more insulating windows were installed in the student rooms, it can create quite a haze in the student rooms, especially in a 3-man room with three active boys.

Big savings by setting up DUKA One

After Otto, the caretaker at Bramming gymnastics & sports secondary school, heard about DUKA One, he tested it in a single student room. After some time, he and the management quickly came to several conclusions:

It works and was easy to install and operate
It would cost less than a third to set up, compared to a larger unit that would have to be installed in the attic.

Avoid working under an asbestos roof

Installing a classic ventilation unit with heat recovery in the attic would require more work. Complicated pipework and insulation would take time and effort, which is why it made even more sense to install the popular 1-room heat recovery unit, DUKA One, in each room.
DUKA One only requires a hole in the outer wall and power to the indoor unit. This made it quick and easy, and didn't require a single trip to the attic.

It made sense to choose the Wi-Fi model

Consider investing in a DUKA One solution

Find the right DUKA One here

The post DUKA One provides a good indoor climate at Bramming gymnastics & sports secondary school first appeared on DUKA Ventilation.

Poor indoor air quality can affect your health

Morten Simoni — Thu, 26 Jun 2025 09:14:56 +0000

Poor indoor climate

Poor indoor air quality can affect your health

Poor indoor air quality can lead to headaches, irritated eyes, allergies, poor concentration and, in the worst case, more serious illnesses such as lung cancer and cardiovascular disease.

A healthy indoor climate is important for our health because we spend many hours in our homes. In fact, we typically spend up to 16 hours a day in our homes.

Indoor air quality problems are usually not caused by a single cause, but by a combination of conditions such as poor ventilation, high humidity, tobacco smoke, particles and the radioactive gas radon.

A poor indoor climate can cause discomfort and illnesses such as:

Irritation in eyes, nose and throat
Rashes, redness and itching of the skin
Headaches and fatigue
Nausea and dizziness
Lung cancer and cardiovascular disease

How your indoor climate affects your health

There are many things we can do in our homes that are bad for the indoor environment. When we light candles, the stove, smoke cigarettes or cook, we pollute the air with particles. The particles vary in size and chemical composition, and the largest are filtered out in the nasal hairs and throat, while the smallest can travel deep into the respiratory tract and end up in the bloodstream, increasing the risk of cardiovascular disease.

At the same time, particles can also lead to respiratory diseases, and according to the Danish Health Authority, indoor air pollution costs 2 million healthy life years annually in the EU, with ⅔ of those lost life years being due to particle pollution. And these aren't the only health problems indoor air pollution can cause.

One in 5 Danes suffers from allergies or asthma, and researchers believe that conditions in the indoor environment play a role in this high number. There is a link between moisture damage in the home and symptoms such as wheezing, coughing and asthma. Dust mites, moulds and other microorganisms thrive in damp environments, and moulds are particularly problematic for people who are already predisposed to allergies - they are the ones most likely to react with symptoms such as red eyes, coughing and a runny nose.

The radioactive gas radon is another major indoor climate culprit that can eventually lead to lung cancer if you are exposed to excessive amounts over time.

Tips and tricks

How to solve problems with poor indoor climate

It is very difficult to determine that symptoms such as headaches and irritated eyes are caused by the indoor environment, as this cannot be determined by a blood test or a visit to the doctor.

But you can try to improve your indoor climate yourself and see if it makes a difference:

Ventilate 2-3 times a day for 5-10 minutes: Ventilation solves many indoor climate problems and is an effective way to reduce moisture and particles.
Frequent cleaning: Dust mites are a major allergy culprit and frequent cleaning reduces the amount of unhealthy particles in the air.
Don't dry clothes indoors: A wash contains 2-3 litres of water, which evaporates directly into your living room. This increases the humidity in the air and gives mould fungi the perfect conditions to grow.
Air out when cooking: Baconos and cooking water from potatoes are moisture culprits and contribute unhealthy particles to the air.
Avoid candles: Researchers believe that candles are almost comparable to road rage. Instead, use electric candles or limit their use.

Consider investing in a ventilation solution

To get rid of particles and moisture in your home, a ventilation system can be the solution. DUKA One is a ventilation solution that ventilates the room 24 hours a day. For 70 seconds, the system sucks out stale and moist air, storing heat in the unit's ceramic core. After 70 seconds, the system's motor reverses and blows in fresh air, which is heated by the ceramic core. This constantly changes the air, ventilating away particles and moisture and saving on heating bills as the heat in the home is recycled. DUKA One is mounted directly in the outer wall and can be installed wherever there is a need for ventilation.

You can find more information about the different models here.

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Do you know the radon level in your home?

Morten Simoni — Wed, 25 Jun 2025 08:31:59 +0000

Do you know the radon level in your home?

A 2020 study shows that 4 out of 10 homes in Denmark have radon levels that are too high. Radon is a gas that seeps up through the ground under houses, terraced houses and apartments and into the home. Radon is not a problem when it is allowed to seep away from the ground surface. The problems start when there is not enough ventilation in the home and the radon gas is kept inside. This is especially common in houses that have been energy renovated without focusing on ventilation. The study from Aalborg University shows that 39 % of Danish single-family houses, chain and terraced houses built before 2020 have too high radon levels in indoor air.

Do I have Radon?

Radon cannot be avoided and you will never achieve a lower radon level inside than outside, but you can keep it at a low level that is not dangerous. Since you can't see or smell radon, you can only measure the level with radon measuring boxes (dosimeters) or with electronic radon meters. If you have signs of a poor indoor climate, there may also be a risk that the radon level is too high.

Signs of poor indoor climate:

More than 2 cm of moisture on the window panes during the cold periods of the year and moisture on the windowsill
Mould growth
Wallpaper that peels and/or bulges
Bad odour
Waking up with a headache
The feeling of poor sleep when you wake up in the morning

Click here to check the risk of radon at your address on Bolius.dk

Solution

What can you do about high Radon levels?

You can do something about radon in your home, and there are several solutions depending on your needs and possibilities. You can ventilate, preferably 3 times a day for 5-10 minutes. This will reduce the radon level to almost the same as outside. However, this can be difficult to remember, and motivation can be low during the cold months when it quickly gets really cold if you air out for 7 minutes. That's why many people choose a mechanical ventilation system that does all the work for you.

DUKA One units change the air for you around the clock so you don't have to remember to ventilate. At the same time, they recover the heat of the air you change, so you recover up to 94% of the heat that would have been lost out of a window.

See which DUKA One device is best for you here

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What does it take to have a good indoor climate?

Morten Simoni — Wed, 25 Jun 2025 08:23:36 +0000

What does it take to have a good indoor climate?

It can be difficult to recognise which of the invisible indoor climate challenges you may have. But if you don't pay attention, you can risk dangerous conditions such as mould growth and high radon levels.

Some indoor climate problems can be solved with a simple change, while other challenges may require a major renovation.

Moisture and particles in the air

Moisture and mould It starts out invisible, but when moisture starts to form on the windowsill or mould stains on the wall, it has definitely become visible. Moisture and mould can be really bad if you have asthma or allergies. For many people, damp and mould appear after they have energy renovated their house and insulated it. The solution can be more extensive, but a great start is to invest in ventilation. You can get both domestic ventilation and heat recovery ventilation systems that prevent damp and mould.

The cleaning contributes to the indoor climate if it is difficult to clean corners or you have many surfaces, dust and odours can be a challenge.

Particles

Particles from the kitchen is one of the biggest culprits when it comes to indoor air quality. The consequences can also be significant, as particles from burning can lead to asthma, COPD and cancer. Therefore, the hood must of course be running and you must remember to provide the hood with replacement air in the form of an open window or wall valve. Switch on the cooker hood 5 minutes before you start cooking to create a small negative pressure, which makes the suction work better.

To get rid of particles in your home, a ventilation system can be the solution. DUKA One is a ventilation solution that ventilates the room 24 hours a day. For 70 seconds, the system sucks out stale and moist air, storing heat in the unit's ceramic core. After 70 seconds, the system's motor reverses and blows in fresh air that is heated by the ceramic core. This constantly changes the air, ventilating away particles and moisture and saving on heating bills as the heat in the home is recycled. DUKA One is mounted directly in the outer wall and can be installed wherever there is a need for ventilation.

The dangerous and invisible challenges

Off-gassing from materials Shouldn't be a problem, but there are actually more chemicals and fumes from new items and equipment. New paint, fixtures and flooring release substances into the air that can cause irritation and headaches, so you need to remember to air out extra when you've just got a new one.

In offices, you should also be aware of printers that emit a lot of paper dust, so it is also recommended to place printers in rooms that are not occupied for long periods of time.

Off-gassing from humans can also be felt if the air isn't changed enough, thus deteriorating the air quality and leading to difficulty concentrating. This can also be solved by not putting people too close together and by ventilating. A ventilation system can also increase air quality

Radon and what you can do

The radioactive gas radon can damage your cells. The lungs are affected by the radiation when the gas is inhaled, which can eventually lead to lung cancer. You can secure your house against radon so that the same amount doesn't seep up through the floor. But the problem often comes when you've renovated the house, which now retains the toxic gas much better. Even if you remember to ventilate, it is recommended to ventilate, either with fresh air vents or with a ventilation system. Consider investing in a DUKA One unit that can also recover heat while replacing the air in your home. A DUKA One sits in an outer wall and replaces the air with fresh air from outside. This provides a better indoor climate and helps with many of the above indoor climate challenges.

The post What does it take to have a good indoor climate? first appeared on DUKA Ventilation.

Create a better indoor climate in your basement

Morten Simoni — Fri, 20 Jun 2025 08:47:45 +0000

Basement

Create a better indoor climate in your basement

Many Danes experience problems with dampness in their basements. The soil around the basement is wet and damp, and many basements are poorly insulated. At the same time, the windows in basements are often small, which can make it difficult to ventilate properly.

In many homes, the laundry room is located in the basement, which also increases moisture levels. Laundry contains up to 2-3 litres of water when freshly washed and evaporates into the air when hanging on a drying rack.

Too much moisture in your basement can cause problems with mould, mildew and bad odours. Mould can cause headaches, eye, nose and upper respiratory tract irritation, coughing, fatigue and skin rashes, and people with asthma and allergies are particularly sensitive to the furry fungus. If you have an old house, the moisture can also have major consequences for the structure of your home. Among other things, it can cause serious damage to woodwork.

The basement is also the level in your home that is most exposed to radon radiation. We guide you on what you can do to reduce moisture and radon levels.

Check the radon level in your basement

Radon is a radioactive gas that can damage our cells and eventually cause lung cancer. The gas is found everywhere underground and enters our homes through cracks and crevices. Because the gas seeps up from underground, the basement is the most vulnerable level in the home.

Since 1998, it has been a requirement that new buildings must be radon-proofed. In 2010, it was clarified that radon levels in new buildings must not exceed 100 Bq/m3 indoors. Many older homes are therefore not radon-proofed and have several cracks and leaks, so the level can be high in the basement.

You can measure the radon level in your basement with a dosimeter that you hang up for 2-3 months. Then you send it for analysis. If the radon level is below 100 Bq/m3, you don't need to do anything, but if it's higher, you need to bring it down by ventilating, getting a mechanical ventilation system or renovating your home.

How to check your basement for moisture and mould:

Use your senses: Does it smell mouldy? And are the outer walls moist when you touch them?
Check your walls: Is there plaster and paint peeling? Dark stains on the walls or behind the wallpaper? 1TP7Does paint peel like bubbles?
Check your furniture: Are there dark stains and stains? Does the woodwork feel damp? Is there any moisture damage on your shelving?
Check your floors: Are the drains blocked? Are there bubbles in the floor paint? 1TP7Do dark stains appear on the floor, or on the back of the floor?
Check the ceiling: Are there dark patches?

If you can answer yes to one or more of these questions, then the humidity is probably too high and the dark patches are most likely mould.

Tips and tricks

How to prevent moisture in the basement

First of all, you can buy a hygrometer that measures the humidity in your basement. If the humidity is above 70 %, your basement will most likely be affected by mould. The humidity should be below 40-45 % in winter and below 60-65 % in summer.

A certain amount of moisture in the basement is inevitable, but you can significantly reduce the level by taking a few simple steps:

Do not dry laundry in the basement.
Ensure good ventilation - the air should be changed frequently, at least 3 times a day for 5-10 minutes. Install a mechanical ventilation system if necessary.
Switch on the heating - heating helps keep the basement dry.
Avoid humidity in summer - the air is more humid in summer, so air out late at night or early in the morning to avoid letting the hot, humid air in.
Place furniture a few centimetres from the outer walls to ensure better air circulation.
Make sure rainwater is directed away from your home - the pipes and lines that carry rainwater away from the house must not be blocked. Also, the terrain around your home should slope away from the building so that puddles don't accumulate around your home.
Set up moisture removers or hang moisture bags - they collect moisture from the surrounding air and are cheap.

Invest

Consider investing in a ventilation solution

DUKA Ventilation has participated in several projects investigating whether ventilation can reduce the occurrence of radon. The results have been extremely positive, and the incidence of radon has been reduced by up to 90 %. Added to this are the additional benefits of ventilation in terms of a good indoor climate with fresh air around the clock, minimised heat loss and the removal of moisture from the home - all of which contribute to a healthy indoor climate.

We recommend DUKA One, which is a ventilation solution that ventilates the room 24 hours a day. For 70 seconds, the system sucks out stale and moist air, storing heat in the unit's ceramic core. After 70 seconds, the system's motor reverses and blows in fresh air that is heated by the ceramic core. This constantly changes the air, ventilating away particles and moisture and saving you money on your heating bills as the heat in your home is recycled. We install DUKA One directly in the outer wall and can be installed wherever there is a need for ventilation.

The post Create a better indoor climate in your basement first appeared on DUKA Ventilation.

Take care of your indoor climate when renovating

Morten Simoni — Thu, 19 Jun 2025 10:59:39 +0000

Energy renovation

Take care of your indoor climate when renovating

Energy renovation has become popular. People have generally become more environmentally conscious and want to emit less CO2. At the same time, gas and electricity prices are rising, so many people want to keep costs down by, for example, adding insulation. The purpose of energy renovation is to retain heat, which typically means insulating the roof, walls, windows and floors.

If the insulation is done correctly, it will also improve your indoor climate, but if it is not, it can have major consequences for the indoor climate. It can cause problems with too much moisture in your home, which can result in mould. And mould is an uninvited guest in our homes, often causing unsightly black stains on walls, ceilings and floors and health problems such as headaches, fatigue, dry mucous membranes, asthma and allergies.

And what's worse: You could have problems with dry rot, which is a fungus that decomposes wood and, in the worst case, can also spread through masonry. We therefore recommend that you consult with an energy renovation expert before starting the renovation.

Ventilation is key in all types of renovation

It's always necessary to consider the indoor climate when renovating - and this applies to all types of renovation. It is essential that your home is properly ventilated. Ventilation replaces polluted, moist air with fresh air and is essential for a healthy indoor climate, especially in rooms like bathrooms and kitchens where moisture levels are highest.

If you are replacing your doors and windows in your home, consider choosing those with fresh air vents. Even though many of us know that we should air out several times a day, it's not always easy to remember. That's why it's a good idea to have fresh air vents in your windows, because the windows themselves will allow fresh air to flow into your home.

However, it's not enough to just use fresh air vents - the recommendation is still to ventilate with draughts 2-3 times a day for 5-10 minutes. Fresh air vents also lead to heat loss, so a good alternative is a ventilation system with heat recovery.

Read LessRead More

Solution

Invest in a ventilation system when renovating

There are many things you can choose to prioritise when renovating your home - but according to several professionals and experts from Realdania's Healthy Homes project, a ventilation system is one of the solutions that improves the indoor climate the most.

That's why we recommend the DUKA One, a heat recovery ventilation system that ventilates your home 24 hours a day. For 70 seconds, the system extracts polluted, moist air and stores heat in the unit's ceramic core. After 70 seconds, the system's motor reverses and blows in fresh air that is heated by the ceramic core. This constantly changes the air, ventilating away particles and moisture and saving you money on your heating bills as the heat in your home is recycled. We install the DUKA One directly in the outer wall, and the system can be installed wherever you need it.

The post Take care of your indoor climate when renovating first appeared on DUKA Ventilation.

How to ensure a good indoor climate in your home office

Morten Simoni — Wed, 18 Jun 2025 06:17:00 +0000

The home office

How to ensure a good indoor climate in your home office

Although Coronavirus lockdowns are over and most people have returned to the workplace, for many, working from home is here to stay. In many organisations, there is a greater acceptance of working from home and many employees still work from home for a day or two a week.

Working from home puts pressure on your home's indoor climate because suddenly people are in your home for 8-10 hours more than usual, which automatically means more dust and moisture builds up. In fact, one person can release up to 2 litres of moisture a day just by sweating and breathing.

When you work at home, you probably cook more, take longer showers and maybe even do a bit of laundry. And the more time you spend at home, the more dust will accumulate in your home. Piles of papers and books in your home office collect a lot of dust.

Especially during the winter months, you should pay attention to your indoor climate when working at home. Many people often forget to open the windows because it's cold outside. Cooking, long showers, laundry and dust are all challenges that contribute to increasing humidity and particle pollution.

Indoor climate

The indoor climate in your home office affects your health

Excessive moisture in your apartment can cause mould, which can cause health problems such as irritation of the eyes, nose and upper respiratory tract. At the same time, mould exacerbates symptoms in people with asthma and allergies.

Poor indoor air quality can also cause headaches, concentration problems and make you tired and unrested - not very conducive to an efficient working day.

That's why it's important that you spend some of your working day creating healthy routines for yourself and your indoor environment to prevent discomfort.

5 tips for a better indoor climate in your home office:

1. Ventilate:

A simple and well-known piece of advice. Air out 3 times a day for 5-10 minutes. It removes both moisture and particles and is healthy for your wellbeing and indoor climate. If you find this difficult to remember, combine it with breaks. Schedule regular breaks in your working day where you air out.

2. Make sure there is a window in the room:

Always choose an office space in your home that has a window. Not only does it make it easier for you to air out, but daylight is also important for your wellbeing because daylight controls your circadian rhythm.

3. Keep the door open:

Keep the door to your workspace open for better airflow.

4. Keep your workspace clean:

Too much dust in your home can bother your mucous membranes. Prevent dust by cleaning a couple of times a week and make sure paper, books and other equipment are stored in cupboards and drawers. In addition, use eco-labelled, fragrance-free cleaning products as this is best for your health.

5. Buy a moisture meter:

Buy a humidity meter to keep an eye on how humid your home is. In summer the humidity should be below 65 % and in winter below 45 %.

The post How to ensure a good indoor climate in your home office first appeared on DUKA Ventilation.

How can I improve the indoor climate in my home?

Morten Simoni — Tue, 17 Jun 2025 12:17:15 +0000

Indoor climate improvements

How do I improve the indoor climate in my home?

2 free suggestions and 1 cheap one.

Maintaining a healthy level of humidity, radon and particles in your home is important, as excessive levels of these factors can have negative consequences for not only your health, but also how healthy you are and how well you sleep in your own bed.

Humidity has a major impact on air quality in the home. Excessive humidity can lead to mould and mildew growth, which can trigger allergic reactions and respiratory diseases. Too low humidity can lead to dry skin, eyes and nose, as well as clogged nostrils, which are a major irritation but also lead to an increased risk of infections. In the home, it should be around 30-60% depending on the season and heat. In bathrooms it can be higher, but since it's a wet room, that's fine.

Radon

is a dangerous gas that can accumulate in the home and lead to serious health problems, such as lung cancer. Excessive radon levels can be as harmful as being a passive indoor smoker. It can be difficult to know the radon level in your home as it can fluctuate greatly over a few days, but it's easy to reduce and address.

Particles

from cooking, new furniture, paint and particles such as dust, can also have a negative effect on air quality in the home and lead to allergic reactions and respiratory diseases. Particles can also carry harmful chemicals and other pollutants that can lead to further health problems.

Indoor climate

To maintain a healthy level of humidity, radon and particles in the home, you may need to take various measures to not only keep the indoor environment healthy, but also promote concentration, sleep and well-being.

Free suggestions:

Breathe out. Preferably 2-3 times a day for 5-10 minutes. Should be done more often/longer, the more people and animals are at home. Together with frequent cleaning, this has the greatest effect on radon, moisture and particles in the indoor climate.

(Almost) free suggestions:

Turn up the heat and think about the humidity in your home. Avoid drying clothes indoors as they give off a lot of moisture. Also, close the door after showering and use a window or vent to bring the humidity back down.

Cheap proposal

Invest in one or more DUKA One units. They reduce moisture, radon and particles in your home around the clock. DUKA One units ventilate the home while recovering up to 94% of the heat that would otherwise just escape out a window when ventilated.

The post How can I improve the indoor climate in my home? first appeared on DUKA Ventilation.

DUKA One ventilation in holiday homes

Morten Simoni — Mon, 16 Jun 2025 09:36:13 +0000

DUKA One in holiday home

Is a DUKA One unit in your holiday home for you?

When you arrive at your holiday home, you want to start relaxing quickly. But ventilation in a holiday home can be tricky, as it can easily be a stuffy holiday home to come back to. With a DUKA One unit, you'll be able to change the air in your holiday home without opening windows - all year round.

DUKA One

How does it work?

DUKA One is a ventilation solution that must run and ventilate 24 hours a day. For 70 seconds, the unit sucks out used and moist air, storing heat in the unit's ceramic core. After 70 seconds, the unit's blowing direction is reversed and the unit sends in fresh air that is heated by the ceramic core. This constantly changes the air, ventilating away particles and moisture and saving you money on your heating bills as the heat in your home is recycled. DUKA One can be installed directly in the outer wall and can be installed wherever there is a need for ventilation.

How much does it cost to run?

You may think that the unit shouldn't run constantly as you're not in your holiday home every day, but constant operation provides a much better indoor climate, fewer particles, and not least reduced moisture and radon.

Read this post where we calculate the power consumption of DUKA One

Ventilation solutions also increase the value of your holiday home

Not only does it increase the quality and value of your holiday home, there are also many benefits to installing a heat recovery ventilation system:

The amount of harmful particles is significantly reduced
You minimise the risk of mould
Reducing the level of radon in your home
You increase the value of your home
Minimise the risk of headaches, allergies and asthma due to poor indoor air quality

If ventilation of your holiday home could be a good idea, don't hesitate to contact your electrician to hear about the possibility of DUKA One in your holiday home.

The post DUKA One ventilation in holiday homes first appeared on DUKA Ventilation.

DUKA One has eliminated the odour in my basement

Morten Simoni — Fri, 13 Jun 2025 08:20:55 +0000

DUKA One has eliminated the odour in my basement

Despite extensive insulation and renovation of his basement, Jesper from Viborg was still experiencing the unpleasant odour in his basement. He realised that some form of ventilation was needed and after talking to a ventilation professional, Jesper decided to get a DUKA One for the job.

We renovated the basement with a focus on good insulation, but it still had a bit of a basement odour, so we thought it probably needed some form of ventilation. I spoke to a professional who told me about DUKA One and what it can do for basement odours and the indoor climate in the basement.

The difference is easy to spot

It didn't take long for Jesper and the whole family to notice how their new DUKA One ventilated their basement with great success.

We've had it for 4 years and we can really feel the improvement. My family has noticed a big difference in the basement smell and odours.

Poor air quality in basements is often caused by lack of ventilation and can lead to dampness, mould and bad odours. This creates an unhealthy indoor climate that can affect health and the building. Good ventilation prevents problems and ensures a dry, healthy and comfortable basement environment.

The post DUKA One has eliminated the odour in my basement first appeared on DUKA Ventilation.