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Dubai’s summer heat needs some relief; swamp evaporative coolers and misting fans are just the solutions. Selecting the one requires a consideration of their features and applications:

• Features and Uses of Evaporative Air Coolers (swamp or wet cooling machines)

An evaporative air cooler or cooling machine works by first drawing in hot air and blowing it over the water surface inside the device. The water absorbs the warmth from the air and evaporates. Therefore, the air leaving the cooler is humid and cold. Note that, it differs from air conditioners which use refrigerant chemicals to cool the air. Also, conditioners are not suitable for outdoor use.

If you reside in a hot, arid area, this type is suitable. However, it tends to consume a lot of tap water and takes up space. Also, they are not suited for indoor use since they produce humid air.

They are based on the principle that when water evaporators it absorbs heat. They have two main elements the misting pump and spray nozzles. During their operation, misting pump pressures water, that is dispersed to the surrounding using small spray nozzles.

It forms small water droplets which evaporate instantly after drawing the heat from the surrounding. They are suitable for outdoor use but can cause the patio and surrounding area to become wet if the droplets are too large.

An upside of using misting fans is that they are more energy efficient and take up less space than coolers. When purchasing one, look at the pressure specification; the more the pressure, the better the quality.