Minisart® Syringe Filter, Polytetrafluorethylene (PTFE), Pore Size 0.2 µm, Ethylene Oxide, Female Luer Lock, Needle (38 × 1.7 mm), Pack Size 50 Added to Shopping Cart Minisart ® Air with chemically inert hydrophobic PTFE is suitable for venting as well as filtration of gases and oils with a pH of 3 - 12.