Brief introduction:
Measures using£ºRespironics EverFlo Stationary and Oxygen Concentrator and the EverFlo Q
The counting efficiencies
Particle size £¨¦Ìm£©0.3 ~ 1.0 Efficiency 99.00%
Particle size £¨¦Ìm£©1.0 ~ 3.0 Efficiency 99.96%
Particle size £¨¦Ìm£©3.0 ~ 10.0 Efficiency 100.00%