I have worked in a warehouse for years, and I had tried many ways to keep cool. I was even given a large industrial brand swamp cooler to use, and it did a reasonable job.  But it was loud and very heavy and spit a lot, so I was always trying to keep things from getting wet.  I used it for a season until my boss needed it back.  When looking for a replacement I decided on the MC92V by Hessaire.  When I compared it to the large industrial brand, the Hessaire brand was less than one third the price.  It was light and easy to maneuver.  It was quiet and easy to use, and it was very efficient.  I loved it so much I purchased a MC37M for my personal use.   As a matter of fact, I was so impressed with these products that I decided to sell them myself.  I am a one man shop.  I order and deliver.  I believe in these products, and I believe you will love them too.  Call me or e-mail me, and I will answer your questions.