This is similar, but acts more like an evaporative cooler (not really a traditional air conditioner but it does the job). It uses a LOT less energy than an air conditioner unit so there won’t ...

Never heard of a swamp cooler? You're not alone. Sometimes called an evaporative cooler ... Although they do tend to dry the air. The unit's price is a big difference between swamp coolers ...

They linked an air-cooling system and evaporative cooling tech to a 3.5 ... a 260 W water pump, a psychrometric unit, and a tomato storage chamber that was assembled on site.