Correct! Honeywell Evaporative Air Coolers don't rely on heavy compressors or refrigerant gas to lower air temperatures, nor do they spray mist. Instead, portable air coolers moderately reduce heat through evaporating water vapor into the air. Honeywell Air Coolers work most effectively in hot, dry climates. Much like a breeze flowing across a lake or the refreshing cool air you feel near a waterfall, Honeywell Evaporative Air Coolers release a comfortable, cool breeze with the natural process of water evaporation. When warm air is drawn into the air cooler, the air is filtered through a wet honeycomb cooling medium, which absorbs heat and naturally cools and humidifies the air.
Honeywell Evaporative Air Coolers are constructed with three central components: a fan, a pump system to circulate water and a honeycomb-shaped absorbent panel. The fan draws in warm air through the wet honeycomb media; evaporation converts the moisture into water vapor; and then cooler, more humid air flows out on the other side. When using an evaporative air cooler, ventilate. Open a window, or keep a door ajar, to expel over-humidity and allow for circulation of fresh, dry air. Also, be aware that the honeycomb media may have a distinct odor when first used, which will dissipate after a couple hours.