Evaporative coolers, also known as swamp coolers, contain cooling pads that are saturated with water. Air is forced over these pads to blow cooled air into the home. The constant state of dampness can encourage mold growth in the cooling pad, which can intensify allergies for people in the home.

For people that do not have mold allergies, a properly equipped swamp cooler can reduce allergies. Air filters in the swamp cooler can remove dust and allergens from outside air, reducing the level of dust within the home. This has a positive effect on the home's air quality.

Depending on the type of allergies you suffer from, a swamp cooler may either improve or intensify allergic symptoms. If you have mold allergies, either avoid the use of swamp coolers or maintain mold-free cooling pads.

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