Ventilation system - problems with dry indoor air

We have major problems with dry indoor air every winter and are looking for a hygienic solution. These evaporation devices are breeding grounds for germs, just like the water containers for the radiators. Our child has asthma, so we need to pay more attention to healthy indoor air. Do you have a good tip?

That is unfortunately the big problem of mechanical ventilation systems, the dry indoor air; some manufacturers offer options for subsequent humidification of the air through the device itself. Whether that works well and, above all, hygienically, I do not know; it is best to ask the manufacturer of the system.

Hello Romanbaut I allow myself once again to write my opinion! Humans only need dry air to breathe. Since we humans misuse our most important nutrient (AIR) for heating and thereby heavily pollute it (dusty), we think the air is dry. However, heating makes it very dusty and heavily burdens our breathing. A kind greeting from dämmunsinn

With all due respect, insulation nonsense, that is nonsense.
"Air" can contain water, whether in the tropical rainforest, the indoor swimming pool, or indoors in summer – the air there is rather humid. Or in deserts, in the sauna, or indoors in winter, it is rather dry.
You can measure this with neutral, physically indisputable methods. A hygrometer does not measure the dust content of the air, but the water content.
And what "muggy" air means, you surely know as well; it is not particularly dust-free air, but particularly water-containing air. Likewise, there is dry air, which affects our mucous membranes and wooden furniture (in especially dry air also wooden floors).

Hello! I read in 20Minuten that people are getting dumber? That’s why I am retreating to our little island, without electricity and water. And A LOT OF DRY AIR. I am sure that I will not dry out, but will grow old healthily. Since there is no electricity, I am signing off. Many greetings from dämmunsinn

Hello Romanbaut, I have a good tip for your problem. Take these ordinary water evaporators and place them on a stove/radiator. If you regularly add a few tablespoons of sea salt to the water, no germs can form. The slightly salty indoor air is especially suitable for asthmatics.