Measurements:

 

 

 

PTFE MEMBRANE:  100%  (CAS No. 9002840)
BACTERIAL FILTRATION EFFICIENCY: >99.9% ASTM F2101¹ (nominal)
WATER ENTRY PRESSURE (WEP): Min 175, Typical 270 (mbar)
AIR FLOW: Min 70, Typical 107 (l/hr/cm² Δp 70mbar)
THICKNESS: 0.13 mm (nominal)