I. Introduction Citizen CHO-91 (6000A) Air Purifier is a Shanghai company for SEN factories, laboratories, in the control room, chemical workshop, printing workshop, electronics factory, machinery factory and other places using specially developed for larger production of a new generation of air purifiers. The machine has a photocatalytic purification, biological filtration, UV sterilization deodorization, efficient filtration, oil mist filtering, degradation of volatile organic compounds VOC; take into account both the complexity and diversity of printing ink smell gas, but also consider the dust control, sterilization comprehensive sterilization, using wind capacity cabinet structure, long purification process, effectively decompose poisonous gases, smell gas, oil mist, dust particles, bacteria, fungi, is ideal pressroom exhaust air purification products. Second, the purification principle 1) coarse filtration system filtration and purification of large diameter dust particles before filtration role. 2) photocatalytic purification and filtration system This system can produce large amounts of plasma to produce instant high energy, but also produce large amounts of OH, HO2, O, such as free radicals, molecules key can open some very close harmful odor of gas molecules bond, to break down into harmless elemental atom or molecule in a chemical reaction process, adding a suitable catalyst, can weaken or loose chemical bonds, thereby reducing the activation energy of the gas molecules to accelerate chemical reactions. Meanwhile ions sterilization purification. 3) biological filtration system to extract liquid deodorant principles of biological natural plant through volatilization effectively remove such, second toxic chemicals, smell gas space. Is the oldest international study, and has been in Canada, Europe and other countries and regions practical application, is a relatively mature technology. 4) efficient filtration system smoke, dust and bacteria and some other odors often attached to dust particles, it has a diameter of 0.3 micron particle removal efficiency of 99.7% can be achieved more quickly clean indoor air. 5) humidification system ultrasonic atomization systems, humidification, odor. Third, the product features 1, against harmful microbes pharmaceutical, food, textile, printing and dyeing workshop: Streptococcus, Avian flu, E. coli, Staphylococcus aureus,, SARS bacteria, coronavirus, influenza effectively kill; 2, decomposition Volatile organic compounds: VOC and other organic chemicals; 3, eliminate odors: can effectively eliminate odors produced by human breath, sweat, urine, objects, mildew, rot and other chemical reactions; 4, to remove particulate matter: remove all kinds of respirable particulate matter, dust, smoke, dander, solid sulfide, solid carbide. Fourth, the main technical parameters Model CHO-91 (6000A) Rated voltage V / Hz 220V --- 50Hz Rated power 300W Flow Rate m3 / h 6000 Noise dB (A) ≦ (high speed) ≦ 60 Dimensions mm 630 × 400 × 1600 Weight kg 40 centrifugal fan type storage capacity L 30 (optional) for an area of ??50 square meters to 150 (as the case may be) five, success stories (part of) a world five hundred Foxconn Technology Group (Yantai) pressroom air purification 2, except Japan Yusei printing workshop, two three, Saehan an electron (Weihai) pressroom odor 4, Shanghai Jiali printing removed, two odor 5, Long Precision Equipment Co., Ltd. Shanghai dry pressroom Purification 6, Taiwan fine mode Computer (Shenzhen) Printing odor removal clean pressroom 7, Taiwan Jing Yuan computer (Jiangxi guangfeng) to remove dust smell clean pressroom 8, the world's five hundred AGC Flat Glass Co., Ltd., Suzhou purification plant odors