Air Deviser Industrial Co. Ltd. is a professional manufacturer of multi-blade centrifugal blower(sirocco fan) and fan wheel. Our headquarter was set up in taiwan and manufacturing center in china. Our products can be applied on machinery, hvacr systems, factory, electric appliance for air suction, discharging, ventilation, air conditioning, heating, cooling etc. Blowers are directly coupled with motor which are easily to be installed and maintained with their compact size. The characteristics of the blowers are high air volume and low vibration. Some of the blower can be designed with 2-3 sectional speeds to cope with operation demand.