Shanghai Shanke Environment Protection Technology Co., Ltd. was established in 2002, located in Jiading, Shanghai, National High-tech Industrial Development Zone. As the professional service providers and manufacturers of environmental technology, Shanke insisted on the environment technology development and the research, and has the People's Republic of China country patent of invention.Shanghai Shanke Environment Protection Technology Co., Ltd. offers the most effective and advanced air purifiers. We specialize in air purification and therefore our sole focus is to offer the most efficient air purifiers you can buy. In authoritative institution tests performed our air purifiers had the highest Clean Air Delivery Rate (CADR), for dust, tobacco smokeï¼benzeneãformaldehydeãTVOC and bacteria, viruses, when compared to other leading air purifiers. SHANKE is leading the revolution of air purification through technical innovation. Combining performance and efficiency with advanced technology is our assurance of excellent quality.