Evaporative humidifiers work by using a fan to blow air about a damp wick, pad, or filter. The water within the wick evaporates into the air, expanding its humidity. This kind of humidifier is self-regulating, as the speed of evaporation decreases since the humidity amount from the air increases. Weak https://humiditycontrol65320.blog-kids.com/38460932/little-known-facts-about-nationwide-humidity-control 
