Features1The product is mainly composed of polymer materials and filter media, filtering gas, high filtration accuracy, and filtration rate as high as 99.999%. 2This type of product is mainly used for the filtration of various gases. Supporting various equipment, such as oxygen concentrator, sputum suction machine, negative pressure drainage and other gas filtration. 3The product has strong pressure bearing capacity and can block water. 4An important accessory for oxygen generator, effectively extend the service life of the machine. 5Light weight and portable, easy to be installed on the machine.SpecificationCondition: 100% Brand NewItem Type: Oxygen Generator FilterMaterial: PPFiltration Accuracy: 0.3umFiltration Method: Air Filter MembraneFiltration Efficiency: 99.99%@0.5micronsEffective Filtration Area: 15.2CM2Interface Size: Approx. 8mm / 0.3inPackage List2 x Filter