It does not employ any mechanical devices; only use the ionic breeze system that silently and constantly produces clean and refreshing air. Furthermore, its elegant and portable mini-design actually does not occupy any space in your car, since it can rest easily on the dashboard. Also, 2 watts power consumption makes it an energy saving device, and can be plugged directly into the Cigarette Lighter Socket, simply with a Fused DC Power Cord we will offer to you in the box.