I bought the Massey High Velocity Fan at WalMart to take to work with me. I am always hot. I have a hormonal disease and therefore I find myself sweating when others are cold. I was moved to a new office and realized very quickly that I would be most uncomfortable without some sort of air moving about.
So I went to WalMart and boughtthe cheapest, small fan I could find. It is an adequate fan for my cubicle but I don't thinkit would put out enough air for an actual large office. So while it suits my needs just fine, I wouldn't recommend it if you work anywhere other than a cubicle.
It is great product for my needs. It is a wonderful fan for its price. It does what I bought it for and I am pleased with it.