User's Manual

Humidity Introduction and Function
3
What exactly is relative humidity: Relative humidity is the amount of water vapor in the air, expressed as a
percentage of the maximum amount that the air could hold at the given temperature.. We normally mark it with ％
RH, like 45％RH. Atomosphereic air always contains water vapor, the percentage of which depends on the
meterological conditions. The higher the temperature is the more the air keeps water vapor. Therefore, we use the
concept of “relative humidity”. When the cold air is heated up to the comfort temperature in winter, the relative
percentage of the water vapor falls which means the relative humidity drops. In order to keep a comfortable and
health environment at home, we need some artificial addition of water or water vapor to the room air- that’s air
humidification.
Ideal relative humidity levels under different situations:
(The most comfortable RH for human being 45-65％RH)
•
Ideal RH for prophylactic and curative purpose: 40-55％RH
•
Computer and telecom apparatuses: 45-60％RH
•
Library art gallery and museums: 40-60％RH
•
Furniture and musical instruments: 40-60％RH
•
Library art gallery and museums: 40-60％RH
Correct Humidity Level
A：The percentage of water mist in a given space with a given air temperature is named as relative
humidity, usually marked as %RH, i.e. 45%RH. The air contains water mist more or less. The proportion
of water mist to the air varies according to different air temperatures. The higher the temperature, the
more water mist inhaled in the air.
B：In the winter, the cold air outside enters the room and becomes warmer by the higher temperature in
the room. As a result, the relative humidity decreases. If you want to keep the healthy environmental
humidity, we need to increase the mist volume in the air. The humidifier can do that for us.
C：Relative humidity in different environments suitable for people:
Functions
1: Relative Humidity
Bedroom, living room：45-64%RH
Room with computer, experiment equipments：45-60%RH
Patient’s room：40-55RH Room with piano：40-60%RH
Museum, exhibition hall, and library：40-50%RH
A：Cation exchange resin filter can soften the hard water.
B：Cation exchange resin filter demineralize in the water.
2: Water filter