JTCCO manufactures air filter, primary filter, medium filter, pocket filter, heap filter, dust filter, powder filter and so on 1) high efficiency,low resistance 2) ... mm in thicknes 4) low operating cost 5) each filter is individually tested 6) application: final or return filtration ... with 99.995% efficiency 7) type: hp mini-pleat hepa filter 8) frame: aluminum 9) media: glass fiber paper Hepa filter