I assume you're referring to the HF model, which I think is very similar to the Northern Tool model which I bought last summer. My wife wanted a BIGGER fan for in the house, so I obliged. It moves a lot of air but is very noisy. We used similar fans in a machine shop were I worked with roll-up doors open and 20-30 large mills/lathes running, the fan noise was not a problem. The fan now resides in my garage/shop however I have yet to use it, perhaps later in the summer with the door open blowing out. We have a smaller plastic import from Costco in the house, and needless to say I wasn't consulted prior to the purchase