Out of all the rechargeable air conditioners I've ever tried to use this is by far the best one. It blows really cool without putting water or ice in it and hold the charge for approximately 7 hours if it's on medium 8 if it's on low. I keep one to work and keep on my little office in my apartment and ended up getting another one just in case one of them messed up which they didn't. The one I have is only been used once is still brand new in the box I paid about $72 for it. I live in 77004 zip code local pick up cash only please I became handicapped and need to sell a bunch of things to keep from having to pay for a warehouse anymore. If interested contact Mike at 832-673-5952 thank you