Eco Air Coolers: What Efficient Evaporative Cooling Means

The US Department of Energy says evaporative coolers generally use less energy than central air conditioners, though results and suitability depend on the system and conditions.

Its evaporative effect is limited when humidity is high, and it adds moisture. Compare another cooling method if humidity is a concern.

Evaporative models use water in a reservoir or feed system. Follow the manual for filling, cleaning and storage.

Check each manufacturer’s stated wattage and operating modes, then consider how many hours and at which setting you expect to run it.