wouldn't be without these fans when its hot . They are powerfull and blast you with cooler air that will lower the temp of your whole room .I've got two of these and find them very effective at cooling things down indoors to a more comfortable temp . They are quite loud when on full blast i have to say BUT personally i can deal with that far more than being too hot and uncomfortable. If you get too hot indoors in the summer i recommend one of these bigger fans ,it's well worth it! .They do make a difference and work better than the smaller size fans or pedastal fans to keep things a little cooler indoors