Shanghai Hefil Purifying Equipment Manufacturing Co., Ltd. is a professional manufacturer engaged in the production of air and liquid purifying equipments, as well as design and installation. HEFIL possesses veteran engineers and skilled workers. With 19 years' isolation technique background of nuclear industry, HEFIL energetically exploit the new technology of air purifying and liquid filters. HEFIL holds the computer-controlled hard-hitting automatic production line of mini-pleat panel air filters, separator air filters and cartridge filters, and is also provided with perfect testing process and dust proof workshops. Our company owns workshops covering up to 2000sqm. HEFIL has obtained a large market share in the field of nuclear, auto, painting, semiconductor, electron, medicine, foodstuff and any other relevance estate in their clean room air conditioning systems. HEFIL is a special company in the production of various air and liquid filters ...[More]ith primary, medium, high and ultra-high efficiencies, temperature resistance filters, clean benches, FFU, pass boxes, air showers, cartridge filters and more.