16x25x1 MERV 11 Pleated Air Filter 6PK - 15.5x24.5x.75 - Actual Size 24x24x4 it is reasonable to specify

it is reasonable to specify that individuals buy a filter with a rating of at least MERV 13 to maintain good indoor air quality in common types of spaces

and for home use

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MERV ratings of 13-16 are able to remove and capture smaller particle sizes even before the filter starts to become dirty

Volatile Organic Compounds (VOC's) & Trihalomethanes (THM's)

16x25x1 MERV 11 Pleated Air Filter 6PK - 15.5x24.5x.75 - Actual Size 24x24x4 it is reasonable to specify16x25x1 MERV 11 Air Filter Box of 6 Actual Size of Filter: 15. 5x24. 5x. 75 Air filters are ranked in a minimum efficiency rating value (MERV) system. The higher the MERV rating, the better the filter can filter out all airborne particulates. Since we are constantly trying to improve indoor air quality, it only makes sense that we would offer air conditioner filter MERV 11. 16x25x1 MERV 11 filters are right on the cusp of being classified as medium