Having already purchased one of these units, I immediately bought a second yet. For the truly affordable price gives a soft device that blows a Fiffi from the head when one is on the highest level. We have Usner bedroom directly under the roof and in the summer frequently suffer the heat that builds up there. The fan we have at the highest level also when watching TV or while sleeping. He does not bother and brings us a significant relief. The only limitation, he has no timer, so you have to leave it manually and can not pretend that he is running a certain time. With a wireless socket but we simply turn it from a distance, a timer for the outlet would also be a solution.