Lasko 20" Weather-Shield Performance 3-Speed Box Fan, 2000 CFM, White, 3720

10/10 fan Very powerful It arrived pretty fast I recently purchased the window lasko window fan to help cool down my Bedroom/Living Room and overall, I'm very satisfied. It does its job I recommend it

I have a theory, with logic and conclusion. First the observation: The makers of this fan made it so that when you turn it on, the first setting available is high, then medium, then low. The logic: Since we all know that getting a motor running requires more power than it does to just continue running, not allowing a full start up is hard on the motor. So if you quickly go to medium setting without letting the high setting run for a few seconds, you may in fact be shortening the life of the motor. The conclusion: If we want this fan to have maximum lifespan, we should, when starting up, allow a few seconds in High setting before going to Medium. And to take it one step further, we likewise should allow a few seconds in Medium before going into low. Perhaps this explains why some fans end up kinda slow, and others do not. Though admittedly theory, it is based on known startup demands of motors. At any rate, I am going to follow this procedure in the hopes my fan has a long life! So far so good.