MERV Rating: Actual Particle Size Removed and Efficiency

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All Filters > Air Filtration Guide > MERV Rating: Actual Particle Size Removed and Efficiency in Percentage

MERV Rating - Actual Particle Size Removed and Efficiency in Percentage

MERV Rating

0.3 – 1.0 Microns*

1.0 – 3.0 Microns

3.0 – 10.0 Microns

<20%

20-35%

35-50%

50-70%

>70%

<50%

>85%

50-65%

>85%

65-80%

>85%

<80%

>90%

<75%

<90%

>90%

75-85%

<90%

>90%

85-95%

<90%

>90%

<95%

>95%

*A human hair is roughly 20-40 microns in size, while viruses (the smallest airborne microbes) range in size from .01 to 0.3 micron.

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MERV Rating – Contaminant Removal Guide
MERV Rating - Actual Particle Size Removed and Efficiency in Percentage

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