14x20x1 MERV 11 4 Pack Pleated Furnace AC Air Filter by AIRx

This is the 14x20x1″ MERV 11 air filter by AIRx. In addition to capturing larger household particles like dust pollen and mold spores MERV 11 filters are also effective at capturing allergens like pet dander dust mite debris and reduce odors from smoke car fumes and smog. Change your MERV 11 filter every 90 days to protect your expensive HVAC equpiment and improve the air quality in your home!