The Heaven Fresh HF 60 Ionic Air Purifier for Cars & Vehicles is designed to purify the air in cars, trucks & other vehicles, being powered by a 12 V cigarette lighter adaptor. This portable, silent purifier has no filters to replace, & helps to overcome driver & passenger fatigue on long family journeys, especially when stuck in heavy traffic where pollution levels are highest, by providing vehicle occupants with fresh air throughout the trip. Specifications of the Heaven Fresh HF 60: Rated voltage: DC 12 V Power consumption: 2 W Ion output: MAX 100, 000/cm 3 Active oxygen output: <= 0.05 ppm Dimensions: 14 x 11 x 3.8 cm Weight: 180 g Applicable area: small or large vehicle