... 1,Material: plastics 2,large air volume, low noise, light weight 3,with CE certificat Plastics portable blower, portable ventilator, blower, ... air blowerColors: yellow, blue., redSize:8" Voltages:110v-220v Speeds: ... ,warehouse to ventilate waste air,harmful gas,dust ect. 8" plastics portable blower with canister duct