Optimally humidify the air with low energy consumption; humidifier Oskar is the one to call in! Oskar humidifies rooms up to 50 m2. The economical evaporator provides exact humidification thanks to his hygrostat. Important purchasing advice We recommend a more powerful humidifier for Minergie houses (low energy or passive houses) or apartments for which calculations should be based on twice the room size. The reason for this lies in the continuous exchange of air: cold and dry outdoor air is heated up and channelled indoors. The moisture produced by people, animals, furniture, plants, cooking, showering, etc. is quickly directed outside by the continuous exchange of air, usually resulting in extremely dry air indoors. Controlled ventilation systems therefore have the same effect as open windows.