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This Is How Often You Should Be Replacing These 7 Filters at HomeIn general, a HEPA filter should be changed every year, pre-filters last 30 days and carbon filters can last three to six months. Clean permanent filters every three months and replace when ...
To combat hay fever or pet allergies, your air purifier should be equipped with a High Efficiency Particulate Absorbing (HEPA) filter. "These filters can remove up to 99.97% of small airborne ...
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