Frequently Asked Questions

How does MIKrovent ventilation system work?

MIKrovent® is a local ventilation device that replaces the opening of windows. It is a system for decentralized ventilation of new and existing buildings with heat recovery and the possibility of regulating humidity in living spaces with ventilation device. It has programmed four radiation modes.

Why do we radiate?

In the past and in older buildings, fresh air in the room was always sufficient, as the construction method and the quality of the materials allowed the buildings to breathe by themselves, and the heating of buildings was not as expensive as it is today. Modern buildings have become considerably more sealed due to the increasing demands for energy savings. In addition to providing minimal heat losses, the sealing of buildings has also caused negative effects, such as the retention of poor quality air and humidity in the room (dewing and wall molding).

How to properly radiate?

The rooms can be radiated in two basic ways – with natural radiation or with forced ventilation using a special ventilation device

What are the advantages of a quality ventilation system?

There are many advantages of a quality ventilation system. Let’s just look at some of them:

– It ensures high air quality for the smallest possible use of energy. This means that we have a pleasant microclimate in the rooms without excessive moisture and unpleasant odors.
– It prevents drafts, the intrusion of external dust and noise, the formation of mold and favorable living conditions for mites, etc.
– The ventilation system with quality filters (F7 or F8) for fresh air makes life easier for people with allergies, as filters keep allergens from entering the building.
– A good system must be easy to operate, inexpensive for maintenance (permanent washing filters) and must have a long life.
– Ensure adequate moisture in the rooms, it must be safe and quiet during its normal operation.


Can MIKrovent system be installed with existing windows?

Subsequent mounting of the MIKrovent® system is possible, but before purchasing, the existing condition should be checked. We advise you to contact the nearest MIK salon and request detailed information.
You can also write to to ask our experts for details.

Is MIKrovent suitable for us?

In a flat that is almost new (we are moving for two years), we have a problem with firing a fireplace (otherwise, of course, we have central heating and occasionally burns a fireplace). All the time of the fireplace we must have one open window (at least on the “in”) one window or a balcony door, otherwise the smoke resulting from the lack of fresh air will occur. Similarly, in the operation of the cooker hood – there is some kind of vacuum in the apartment.


Would these problems be solved with the MIKrovent® system?

MIKrovent® is a ventilation system – this means that the standard pressure keeps the same pressure in the room. If there is a vacuum in the room, as in your case, you need to have open windows during the hood and fireplace, but MIKrovent would allow a larger amount of air on the inlet and smaller in the outlet.

Is this system also possible to be installed on windows produced by other manufacturers - we have PVC windows from another producer with external blinds?

MIKrovent already has a standard built-in overpressure mode in the room. This means that it forces the air into space forcibly, which is ideal for your problems.

How many units would you need for an apartment that is well below 100m2? What kind of order of the size of the investment would it be?

It can also be mounted on windows of other manufacturers, or directly over the external wall. For 100m2 we recommend 4 pieces – price with installation and VAT would be approx. 2.600 €.

I have two MIKrovent devices in the room. If I set them in automatic mode (A) and let it work for a long time, both devices continually operate at level 4, meaning at the second highest level in terms of air flow and volume. Is it normal for both devices to operate in a very loud mode A in level 4 even on a longer period of time? Vapor of air is heard on both devices only on the lower third of the grid.

MIKrovent behaves according to the internal moisture depending on the amount of air that the device “turns”. I suppose that you currently have higher moisture in the apartment? Since your MIKrovent devices have been newly installed in the environment, I suggest that you use them for some time (e.g. a week or two) without additional ventilation (without opening windows), since it is likely that the relative humidity is saturated in the apartment, giving MIKrovent a signal for constant longer and stronger ventilation. When the conditions (humidity) are settled in the state, MIKrovent will also operate at lower “turns”, i.e., lower level.

Accordion Panel

After stabilizing the atmosphere, the MIKrovent units will operate in mode A in level 1 and 2. In the event of a higher atmospheric load, the level will be automatically adjusted. Until then, I suggest that you adjust the operation to Manual 3 or 4 in a room where you are not present, and when you are in the room, you reduce it. The point is that MIKrovent works all the time and that during the process of setting up (so that the atmosphere does not adjust to the optimum), do not disturb the MIKrovent system with too much natural ventilation (for example, by opening windows), as this will affect the operation of the system.

MIKrovent switches off in the programing mode during the time settings and stops functioning. It switches off for example between 20:00 - 21:00 Manual 1 and 21:00 - 22:00 Manual 2. What is happening and how can I solve it?

When programming ventilation programs by days and hours, one-minute-delay must be taken into account. For example, Manual 1 is set from 20:00 – 21:00, whereas Manual 2 is set from 21:01 – 22:00. MIKrovent will still turn off in the meantime, but will also switch on to the desired program at 21:01. We are developing a new software that will remove these problems.

Accordion Panel

The instructions on how MIKrovent should work are not stored in the device itself, but in the remote. At the certain time-point which you’ve set, the remote signals to MIKrovent how to behave. To achieve this, the remote must be constantly directed to the ventilation unit. In new versions of remote, the information settings will be recorded on the device itself, not in the remote control.