Foshan Greenairsys HVAC Equipment CO., Ltd is a professional enterprise of HVAC equipments and accessories, with more than ten years’ experience. Our Company has solid technical strength with more than ten patents. We devote to innovating and developing novel advanced products with strict quality. Our Main products are Air Grilles, Air Diffusers and Air Louvers, Air filters and Acoustic Attenuators, Air Volume Flow Control Damper, Fire Damper and Smoke Damper.