LED INDICATOR & AUTO SHUT OFF: The MICRO3 odor eliminator has an automatic shut off feature that activates after 20 minutes of use. A green LED light indicates when it is in operation. To run a second cycle, simply unplug and re-insert into the 12V adapter.
DESTROYS ODORS: There's not an odor the MICRO3 car air purifier can't eliminate, including cigarette smoke, spoiled food or milk, pet smells, athletic clothing smells, or just plain old car odors.