4-68 Centrifugal exhaust fan / centrifugal ventilator

4-68 Centrifugal ventilators can be used in common plants and large-scaled building to exchange air.It can both induce air and exhaust gas.The medium should be air and other unnatural but harmless,non-corrosive to steel gas whose temperature should not surpass 80 deg C.There should be no adhesive matters.The dust or hard granulated matters in air should be less than 150mg/m3.