Merv 11 Ducted FiltersThese filters are rated for three months use under standard conditions. Merv 11 has a higher rating and filters out more allergens than Merv 8. If you or anyone in your family have asthma or allergies, this is the filter for you.
Merv 8 Ducted FiltersThese filters are rated for three months use under standard conditions.
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MERV is an industry standard rating for air filters that measures its ability to trap particles ranging in size from 3 to 10 microns.
