Air cleaners are used to clean the air in living spaces. Cleaners differ according to the various built-in filters, and some also have a function of ionization.
Humidifiers are used in areas where is a lack of moisture. As a rule, this is in all houses with a central ventilation system in Slovenia, where outdoor humidity in winter falls even below 30%. Recommended humidity that makes healthy living is in the area around 50%. All the better moisturizers are also air cleaners, as they use a wide variety of filters.