Usage/Application: Industrial Material: PP PMH SERIES of Hydrophobic Membrane Filter Cartridges by KITTEN are PTFE Membrane Filters ideal for bacteria removal in Gas and Air. Type: Cartridge Filter Available Rating: 0.1um, 0.2um (0.01um in a gas), 0.45um, 0.65um, 1.0um, 3.0um, 5um and 0.01um