... air volume, low noise, light weight 3,with CE certificate Plastics portable ventilator, portable blowerColors: yellow, blue., redSize:8" Voltages:110v ... underground cable maintainance,shipping making,exhaust for fire fighting, piping construction and in other violent working situation for ventilator. with good ... ,warehouse to ventilate waste air,harmful gas,dust ect. 8" plastics portable blower