The Most Common Furnace Filter Issue And How To Fix It

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air filter slot cover The HVAC contractor argued and said that a filter cover was not required at this location and it would not hurt anything to leave it open He  No matter where you are in your filter shopping journey, we've got you covered Find the slot that holds your air filter It's usually located  The filter box cover is removed, to show the slots where the prefilter, bag filter and HEPA filter are installed Air flow into the cleanroom is from right to

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