* amount of wind scope: 1200-2500m3/h, suits in the large and middle scale conference rooms, the office, the guesthouse, the laboratory, the engine room, the dining room, the natatorium, medical places and so on hospital building, edible mold mushroom spawn breeding farm, market and fitness, rest and recreation.the 1  machine puts in the suspended ceiling, does not take the indoor space, does not affect the house decoration effect. Lower part the machine is equipped with the suspended ceiling bottom request, has the higher construction security.2 the unique structural design, applies the air hose deafen technology in the equipment, has guaranteed the perfect static sound effect.  3  besides has general trades the new atmosphere, the air purification, the energy recycling and so on basic function, but also has provided the different control system, may realize many kinds of specific equipment functions.