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weety

Do I need a filter at return air vent if we have air cleaner in attic?

weety
5 years ago

We do not have a filter at the return air vent on the ceiling for our air conditioning unit. It is super, super dusty in there. Husband says we do not need one there because we have an Aprilaire High Efficiency Air Cleaner in the attic that has its own filter. Do we need a filter at both points? Or is that air cleaner filter enough and can take the place of a regular filter? Or should we have a filter at both points? I never realized we didn't have a filter in the ceiling until I looked and didn't see one!

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