Measurements:

 

 

 

PTFE MEMBRANE:  100%  (CAS No. 9002840)
WATER ENTRY PRESSURE (WEP): Min 185, Typical 270 (mbar)
AIR FLOW: Min 48, Typical 85 (l/hr/cm² Δp 70mbar)
THICKNESS: 0.30 (mm ±0.03mm)
IP RATING: 64, 67 (BS EN 60529: 1992)
FILTRATION EFFICIENCY: 0.5μ (IEST RP-CC007.2 200)