• Get FREE shipping on orders over $99

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
1--<20%
2--<20%
3--<20%
4--<20%
5--<20-35%
6--<35-50%
7--<50-70%
8-->70%
9-<50%>85%
10-50-65%>85%
11-65-80%>85%
12-<80%>90%
13<75%<90%>90%
1475-85%<90%>90%
1585-95%<90%>90%
16<95%<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.

Charts & Tables