Hoi Hing purification company engaged in air purification system equipment specialist. Set design, installation, commissioning, operation and maintenance of purification equipment R & D, production and sales of high-tech enterprises. The company has numerous professional and technical personnel to class design, quality construction management, and good after-sales service support and the integrity of the service concept for the semiconductor, microelectronics, PCB, spot technology, optical instruments, bio-engineering, medicine and health and high-tech fields such as fine chemicals and food industry to provide 10 -10 10,000 of clean production environment. Selection of high-quality German ebm centrifugal fan, independent research and development, production FFU (FanFilterUnit), air shower, pass box, clean benches, HEPA, assembled a clean production lines and other air purification equipment.