The hot summer is coming,this Cooling Fan is Just What You Need. It's time to try this 200W low-energy indoor/outdoor Evaporative Cooler! Cover 430.56 Square Feet in secs for the max wind speed and 3000CFM large air volume.Adding water and ice crystals to make you feel even cooler and comfortable.This item will be your perfect choice. It is no need to bend over to add water at the top. This portable Evaporative cooler fans is built with 4 strong and durable 360°rolling wheels (2 Locking, 2 Non-locking). Even if you are not using it as a cooler, it's a windy machine! This cooling fan can be used outdoor, semi-outdoor and indoor, both household and commercial. It can also play a perfect role in these places: garage, patio, garden, porch, gym room, movie night, BBQ party, family lunch gathering, store, or office.