Awoco Super Power 1300 CFM Commercial Indoor Air Curtain with Heavy Duty Door Switch, 40" 2 speeds: high at 1600 CFM, low at 1300 CFM. High speed powerful air blow for high entrance. Low speed to save on energy consumption, best for Regular entrance or drive-thru window Motor: adopting the technology of German electrical machinery, it runs smoothly with reduced low noise. Fan wheel: German electrical machinery design, Made of high-tech ABS, powerful wind-force Fire proof and anti-erosive metal case, easy to clean slim body. Easy to open, convenient design without screws. Optimized electrical machinery, reliable and safe runs for 5,000 consecutive hours 110V-120v 60Hz 400W, a hi/lo/off switch on the air curtain, also Comes with a free heavy duty door switch with roller plunger. Air volume: 1300 CFM, noise: 69 db Overall size: 39-3/8(length) x 10-3/8(height) x 8-5/8(depth, front to back). UL listed