人们往往很关心居室的温度,而往往忽略了居室的空气湿度。所以大多数家庭一般也只有温度表,极少有湿度表。其实,温度对人们的健康重要,湿度对人体健康也是非常重要的。空气湿度就是单位体积内空气中的水分子的含量,它以相对湿度百分比或水汽压(百帕)来表示。相对湿度是空气中实际水汽压与当时气温下的饱和水汽压之比。以百分数(%)表示。相对湿度的大小表明空气距离饱和的程度。相对湿度愈大,空气愈接近饱和状 People are often very concerned about the temperature of the living room, but often overlook the room humidity. So most families generally only thermometer, very few hygrometer. In fact, the temperature is important to people’s health, humidity is also very important to human health. Air humidity is the amount of water molecules in the air per unit volume and is expressed as a percentage of relative humidity or vapor pressure (hPa). The relative humidity is the ratio of the actual vapor pressure in the air to the saturated vapor pressure at the current temperature. Expressed as a percentage (%). The relative humidity indicates the degree to which the air is saturated. The greater the relative humidity, the air closer to saturation