Humidification of certain areas can be very important, especially, badly ventilated, heated rooms. In closed off, well heated rooms such as these, the relative humidity often falls well below the optimum value of 45-55%. Occupants of such rooms feel the effects of dry air with sore throats and eyes etc. Furniture, antiques, paintings, musical instruments and books can suffer serious damage if the air is too dry. Reliable humidification and filtration of the ambient air can prevent this damage.

Humidifiers not only humidify the air, the also filter it, cleanse it of dust and prevent the build up of electrostatic charge.