Choosing an Air Freshener for an Evaporative Cooler

Only use an additive if the cooler manufacturer explicitly approves it for your model. Household fragrance oils and cleaners may leave deposits or damage the pump and media.

Unplug the unit, drain and clean the reservoir, and inspect the media as directed in its manual. Dry components before storage and replace media if the manufacturer says it is no longer serviceable.

Scent pads add fragrance; they do not provide the evaporative cooling function. Cooling comes from water evaporating across the wet media as air passes through it.

Do not add essential oils unless the manual specifically allows them. Oils can leave residue and may affect plastic, seals, pump operation or the media.