The Hair Loss Encyclopedia
amount of moisture in air relative to its maximum capacity
Relative Humidity (RH) is a measure of the amount of moisture in the air compared to the maximum amount of moisture the air can hold at a given temperature. It is expressed as a percentage; for example, 50% RH means the air is holding half of the moisture it could potentially hold at that temperature. This concept is important in various fields, including meteorology, HVAC, and even hair care, as it affects how hair behaves and responds to different environmental conditions.