Measurements:

 

 

 

PTFE MEMBRANE:  100%  (CAS No. 9002840)
PORE SIZE (mean capillary flow): 4 Microns (nominal)
AIR FLOW: Min 25, Typical 60 (l/hr/cm² Δp 70mbar)
WATER ENTRY PRESSURE (WEP): Min 40, Typical 140 (mbar)
THICKNESS: 1.5 (mm ±0.25mm)