Comfort is, of course, a personal matter. Regardless of your preferred comfort zone, it is NOT merely a matter of air temperature. Comfort depends on a combination of factors:
- Air temperature (We use forced air heaters and air conditioners to control air temperature.)
- Radiant temperature (Standing in sunshine, near a fire or a cold window makes you feel warmer or colder than the air temperature.)
- Air movement (Fans and breezes make you feel cooler.)
- Relative humidity (In high humidity, we feel clammy and uncomfortable; in low humidity, we feel cooler because moisture on our skin evaporates more readily. When RH is too low, however, it can cause skin and eye irritation and static electricity.)