Supply G1/G2/G3/G4 early effect of air filter Tianjin G4 pre-filter air purification professional supplier currently employed there should be two ways: one is the use of early, middle, HEPA filter (High Efficiency Particulate Air filter) physical technology, which is the current international mainstream technology. Using the general air purifier filter, filtration of suspended particles of 0.3 micron efficiency can reach 99.97%, the chemical fumes, bacteria, pollen, dust particles, and has a good filtering effect, but does not filter out harmful gases. In recent years, activated carbon filter to remove harmful gas filtration great progress, but it can not be removed! Aluminium junior high efficiency filter pore size is relatively large fine particles can, but can well remove large particles of plant fibers, seeds, dust, mold, animal hair, etc., to reduce the filtration pressure HEPA filter. Extend the life of the HEPA filter. This air purifier drawback is the need for timely replacement of filters, and the price is higher. Environmental Protection Technology Co., Ltd. of Tianjin Klein is registered in the Chinese coastal city - Tianjin Industrial Park, North Town, a demonstration of high-tech joint-stock enterprise, is specialized in the air filter. Filter bags and purification equipment product development, production and sales of professional firms . We have advanced technology, equipment and first-class R & D personnel, development and manufacture of high-end products to provide a strong guarantee. Produced early, middle and high efficiency air filters, shutter-style filters, HEPA, FFU, air shower, laminar flow hood, clean bench, clean shed, chemical filter, liquid filter bags and other cleaning products is widely used in optoelectronics, semiconductor integrated circuits, bio-pharmaceuticals, hospitals, automotive paint room, industrial coating equipment, precision instruments, food hygiene and other air conditioning systems. In the company of "quality first, reputation first, service first" purpose and dedication to provide customers with "high-tech, high-level, high-quality" products and equipment. Contact: Manager qq: 2368686909 Tel: 18822043443 Website: www.klnkln.com mail: 18822043443@163.com Address: Xiqing District Demonstration Industrial Park in the northern town Kaiyuan Road