Range of use:Best for hot dry climates, where the air humidity is low.Oscillating air circulation for even spread of air distribution. Easy to move:it is equipped with four casters that allow for easy movement across most floor surfaces. You can easily move to the space you need to cool down. Personal Evaporative Air cooler:Add Pure Water Along With Small Ice Cube Or Essential Oil In The Water Tank,Blows A Stream Of Cooling Wind And Lowering The Temperature Of Your Personal space. Quiet Operation And Intelligence:You Can Use It Safely Because It Does Not Disturb Sleeping, Once You Add Water You Can Also Use A Cold blower. 【Application】Perfect for home or commercial use, indoor or outdoor. Perfect for living room, meeting room, office, kitchen, dining room, garage, warehouse, gazebo, etc.