... ,durable 3.large wind,low noise 4.safe,reliable Hot sale air blowerFrom polluted indoor air, moisture, smoke, sucked ... and other places.FEATUREMotor using punching shell, low-noise ball bearing, with over-temperature protection, low temperature rise, low ... -Q350220/380 14001801003700APK40-Q400220/380 14002501105300APK50-Q **We supply all kinds of air blower with different sizes , ...