1.CE/Rohs certificate 2.Quiet operation,variable speed 3.large blowing rate 4.overheat protection 5.durable mental pedestal Detailed Product Description1.Cad optimized design,energy-conservation and save the electricity,elegant appearance,generally apply to the factory,warehouse,office building,house,market,ect.2.have long performance life,no trouble with operaing 6000 hours in succession.3.Heavy ...