• Humidity (the amount of moisture in the air) is measured with a hygrometer
  • Medical practitioners recommend 40 to 60% relative humidity
  • Colder air holds less humidity

At a relative humidity of 40 to 60 percent, the air in a room is ideally humidified for people, animals and plants as well as furniture and musical instruments.

Opening the window won’t help

As cold outside air is unable to hold much humidity, the indoor air can be made even drier by opening the window. While opening a window may allow fresh oxygen into the room, “thirsty air” needs the active addition of water to prevent it from drawing the moisture from our mucous membranes and skin, plants and wooden objects. In order to maintain a sufficient level of humidity during the colder months, a suitable humidifier must be used.


AIR-O-SWISS and BONECO offer a number of high-quality humidification systems and products to quench the thirst of dry air.