Theroofventilationfanappliesthetheoryofconvectionbetweennaturalwindandairtoaccelerateandtransformanyparallelairflowintoverticalsoastoimprovetheindoorventilation.Thehotairrisesandcoldairfalls,whichmakesthefanrotate.Sotheindoorheat,stinkanddustareexhaustedeffectively.Italsocaneffectivelyremoveindoorsoot,***oke,odor,moisture,heat,decorativeharmfulgas,dust,humanmetaboli***andotherdirtyvolatilemixed-dopedodoraswellasvirusesandbacteriainvasion.Asaresult,itimprovestheworkingenvironment,protectsworkers'healthandenhancestheworkingefficiency.Itiswidelyusedinwarehouse,toilet,factory,workshop,stadium,tennishall,assemblyhall,garage,papermill,galvanizationfactoryandcoatingfactory.Advantages:1)High-efficiencyventilation2)High-qualitystainlesssteelbody3)Easyandfastinstallation.4)Environmentalprotection,energys***ingandnoelectricitycost.5)Stableanddurable,dehumidifier,anti-sweatandrain-proof.6)Highsensitivityandnonoise.7)AlltheventilatorsadoptAmericanUBCbearings,freelubrication.Supportingbracketsareallmadeofstainlesssteel,whichhasverygoodcorrosion-resistantability.Specification:ModelNo.:AP600Material:StainlesssteelAmountofBlade:29PCSTotalHeight:620mmTurbineDiameter:720mmVentilationDiameter:600mmBasePlateDimension:780mm*100mm)