Review on UL Certified 120V Unheated Awoco 48 Super Power 2 Speeds 1650CFM Commercial Indoor Air Curtain With Free Door Switch by John Akins

I live in North Texas and in the summer have an issue with flies, insects, and cold air escaping when I open my back door to use my patio. I installed this Air Curtain a week or two ago and it is helping big time. The number of flies and other flying insects getting in my home has been dramatically reduced as it the cold air escaping. It does make noise a little noise but well worth the trade off.Additionally I bought it "Slightly used" for $200 instead of $280 and as it came in the original box and everything was still wrapped in plastic. I suspect it might have simply been a return that was never opened.My wife and I use our patio and backyard space everyday and I feel this is helping me win the war on insects, flies, and cold air loss. I am sure the same will be true in the winter when it help keep the cold air out.