I bought this because I have some upcoming plane trips and am concerned about COVID. I figure running it off my laptop at my seat can't hurt. Particularly since the airline claims one of the reasons its safe to travel is because of the HEPA filter in the cabin. This thing is as described, about the height of a can for two tennis balls. Its very lightweight and quiet. It runs off a USB port which you can put on a battery pack or a charger. Its not all that powerful, it can barely lift a piece of paper put on top of it. Manufacturer says its good for somethign the size of an office cubicle. Ill try it on the airplane and hope i dont get sick.