Evaporative humidifiers operate through the use of a supporter to blow air over a moist wick, pad, or filter. The water during the wick evaporates into the air, increasing its humidity. This kind of humidifier is self-regulating, as the rate of evaporation decreases as the humidity amount within the air https://beauqwafi.blogolenta.com/35152718/indicators-on-nationwide-humidity-control-you-should-know 
