A common myth doing rounds in both the online and offline space is that Evaporative Air Coolers, or desert air coolers as they are commonly known as, are harmful for our health. It is simply not true.

On the contrary, air coolers are a great choice for our home and environment. Out of all cooling solutions available in the market today, air coolers are the only devices using a natural air-cooling technique. It has evolved from a natural, age-old practice used by people living in desert areas for cooling the air. People would hang water-soaked cloth sheets in doorways and windows to cool the summer winds. The evaporation of water would then cool the incoming air. Hence, the popular name, desert cooler.

How effective is Evaporative Air Cooling?

Surprisingly, in comparison to air conditioners, Evaporative air coolers are much more effective in cooling both indoor and outdoor areas. In fact, air coolers can cool larger areas in less time due to their strong throw of air and faster cooling process. More importantly, air coolers can be effectively used in outdoor areas where air conditioners fail. In both rural and urban areas, air coolers are being used in the open by millions of households.

So, why do they say that air coolers are harmful for our health?

The argument is based on a false premise that air coolers increase humidity, which can cause bacterial and fungal growths. But here is the part that is not included in this false argument – India, like many other countries where air coolers are popularly used, has a tropical climate. Which means, there is not much humidity in the air, to begin with, and the increase caused by an air cooler only leads to cooling, rather than unhealthy conditions.
Moreover, the whole argument about ‘air coolers and health’ is based on a theory that is not backed by any kind of scientific evidence, whereas the positive effect of using air coolers on the environment is well-established. These devices use a natural cooling technique, use less energy, and are easier to maintain. We very well know the about harmful CFC gases emitted by most ACs as well. The Ozone layer in our atmosphere gets depleted when it reacts with these CFCs. Ozone layer is responsible for filtering harmful radiation coming from the sun, and in its absence these radiations pose a serious risk to all life forms on the Earth. Coolers on the other hand do not emit anything other than soothing flow of naturally cooled air.

Also Read: Per hour Electricity used by an Air Cooler

New air coolers with better cooling technologies

The evaporative air-cooling technology has come a long way in recent years. Global brands like Honeywell are offering air coolers which are less noisy, portable and use honeycomb cooling media for better cooling performance. If you are in the market for buying an air cooler and are yet to decide between a branded product or locally made unit, use our air cooler buying guide for reference.