Air valves, PP, PFAS Analytic / Bohlender / Bola

The integrated non-return valve avoids evaporation of solvents and lets flow ambient air into the bottle in case of vacuum. The upstream PP membrane restrains pollutant particles and other contaminations from outside.


-Free from polyhaloolefins
-Lid with aeration opening and Luerlock connector
-Clip-on service life indicator