... injection, inert gas purification (as total air filters, sub-filters), distilled water cans, respirators.AXENATION filters is especially used for sterilizating caned air ... . Aperture uniform stability, gas resistance, renewable convenience. Chip of the Filters can be use for 1-2 times , after Regeneration it ... type :ferrule quick-install, Thread, flange for selection Air (filter) respirator