A state-of-the-art evaporative cooler uses several filters to ensure your overheated body receives a cool breeze and nothing else. There are water filters inside the unit to remove liquid impurities. Meanwhile, fitted air filters prevent dirt and debris from entering that chilled breeze. Here’s a simple guide on how to change those filters, a set of instructions that also guarantees a pristine water supply inside your evaporative cooler.

Replacing the Air Filters

As mentioned a moment ago, air filters stop airborne dust and dirt from entering the cool air stream after that air has passed across the evaporative cooling media. There are different types of air filters, some of which are capable of really purifying the environment. Pollen is sieved by this filtration media, as are other allergens, ones that are known to cause respiratory distress. As for the replacement method, turn off the unit and pull the power cable from the wall. Depending on the model, the filtering media is fabricated from different materials, from carbon or perhaps some HEPA compliant particle absorber. That pad is likely mounted directly on top of the input channel, the section of the unit where the air is drawn in and over the fan. Unfasten that vent cover and pull out the old, choked air filter. Substitute a suitable replacement unit and reverse these steps. It’s obviously a good idea to have a screwdriver on hand, plus a chamois cloth, something that can wipe away the excess dust and dirt.

How to Change Water Filters

Pull the plug. Have a few different screwdrivers ready, plus that ever-handy chamois cloth. At this point, the evaporative cooler housing is in one piece. If it’s a hardy industrial or commercial unit, then waterproof seals and screw-fastened maintenance covers are covering the access ports. On a domestic device, pop-out plastic panels facilitate the maintenance work, so there’s probably no need for a toolbox. Either way, when that access panel is finally open, admittance to the water reservoir is granted. Empty that reservoir, check the product manual for the location of the water filter, and replace it with a manufacturer-approved substitute. Again, there are different water filter types, including an inline variant, but the reservoir type is more common.

Incidentally, the cooling media on an evaporative cooler also functions as a filter, so carry out a visual check on this important part of the appliance if the cool air is letting pollutants through. And one final point: this is a guide to changing the filters in your evaporative cooler. Sometimes, however, those filters can be cleaned and returned to service. Read the product manual to see if this option applies to your model.