Shanghai Tofflon Dehui Cleanroom & HVAC System Co., Ltd. is a subsidiary under Shanghai Tofflon Science and Technology Co., ltd. engaged in production and R&D of purifying equipment and engineering installation. provide one-stop systematic service 夫from concept design, product design, equipment manufacture, equipment debugging, verification，goods delivery to engineering installation in medical, biological, electronic, animal room, operating room, food, plant culture and other fields, let customers feel satisfied, rest assured.