Micro-fiber Glass Filters

Beta Ratio = The number of particles of a given size and larger of a filter to the number of particles of the same size and larger downstream.

Beta Ratio/Efficiencies
Beta Ratio	Capture Efficiency
1.01	1.0%
1.1	9.0%
1.5	33.3%
2.0	50.0%
5.0	80.0%
10.0	90.0%
20.0	95.0%
75.0	98.7%
100	99.0%
200	99.5%
1000	99.9%