Traditional Culture Encyclopedia - Weather forecast - What is the normal humidity at home?
What is the normal humidity at home?
Second, air humidity refers to the degree of air humidity. General relative humidity. Relative humidity refers to the percentage of water vapor density actually contained in the air and saturated water vapor density at the same temperature. The optimum relative humidity for human body to feel comfortable indoors is 49% ~ 5 1%. If the relative humidity is too low or too high, the human body will feel uncomfortable and even harmful to the human body.
Extended data:
1. The degree of dryness and wetness of air, or a physical quantity indicating the amount of water vapor contained, is called humidity.
Second, there are three basic forms of humidity, namely water vapor pressure, relative humidity and dew point temperature.
3. The water vapor pressure (once called absolute humidity) indicates the pressure of water vapor in the air, in hectopascals (hPa), with one decimal place reserved.
4. Relative humidity is expressed as the percentage of the ratio of actual water vapor pressure to saturated water vapor pressure in the air at the current temperature, and it is an integer.
5. Dew point temperature refers to the temperature when the water vapor content and air pressure in the air remain unchanged and the cooling reaches saturation. Units are expressed in degrees Celsius (℃), with one decimal place reserved. When equipped with a hygrometer, it can also measure the continuous record of relative humidity and minimum relative humidity.
References:
Humidity-Baidu Encyclopedia
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