Atmosphere Drive. I've only used it for one season. It really did a great job of removing dust. Please purchase the filter separately. This is a car-mounted touch-operated air purifier, connects to the cigarette lighter socket, and has an LED indicator. - Type: Car air purifier - Power source: Cigarette lighter socket - Operation buttons: Touch-operated - LED indicator: Yes - Cable length: Approximately 1.5m Thank you for looking.