Product Description Customized Size Catechu Filter For killing golden grape coccus,coliform and bacillus 90% efficiency High efficiency of dedust based on electrostatic fiber Deodorization based on active carbon material Anti-acarid Filter Adopting abio-anti-acarid liquid Green products,non poisonous for body health Long efficiency filter Anti acarid and restrain acarid propagator Bacteriolysis HEPA filter For killing golden grape coccus,coliform, pollinosis,pneumobacillus,tubercle bacillus,MRSA,LUTEUS,anthrax .getting 99% efficiency HEPA for clearing out0.3 micron particles of 99.97% efficiency and Wind resistance is one third than fiberglass HEPA Vitamin C Filter Adopting Vitamin C inducement and giving out Vitamin C absorbed by skin. Efficiency:1.Relaxing your spirit,2.Restraining your cholesterol ,3.Anticancer,4.Immunity,5.Improve Fe element absorbed,6.Increasing skin's moisture,7.Restraining dark dot on your skin oxygenation,8.Make ossein productive,make your skin flexible Customized Size Efficiency :killing golden grape coccus,coliform and bacillus,getting 95% efficiency Products life:10years Silver Ion Filter Efficiency :killing golden grape coccus,coliform and bacillus,getting 95% efficiency Products life:10years Anion Filter Efficiency:Adjusting your spirit,improving your blood cycle,metabolism.Strengthening immunity.it is also benefit for hypertension,asthma,flu,insomnia,arthritis Anion is called "Vitamin in air " Nano TiO2&Al Base Filter Decomposing Formaldehyde,benzol,ethanethiol...70% efficiency Killing the virus,bacterias,especially for golden grape coccus,coliform...95% efficiency Largen the surface with air Deodorization function Reproduction function Long life,washable Green products