AirCare2Go - Portable Air Purifier for your Car, Office & Home 100% Portable Air Purifier w/ Car Charger & USB power! Naturally created negative ions are OZONE FREE! Actually enjoy breathing and Create less stress inside! Cold diffusion of essential oils is Carcinogen Free! Gentle humidity is added to provide a more comfortable environment Clears cigarette andother unwanted odorsfromtheair!