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How are air filters rated?

Air filter ratings.

Ryan avatar
Written by Ryan
Updated over 4 years ago

Air filters are rated according to their Minimum Efficiency Reporting Value (MERV). It is a scale from 1-16 on the level of the porousness of the filter, with the higher the MERV rating the more contaminants being captured by the filter. The commonly accepted MERV ratings for homes is MERV 8, 11 and 13

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