Add essential oils. With just one to two drops, you can invigorate your car with an uplifting, fragrant mist. Do not go beyond two drops, though, as an excess can clog the vaporizer hole. Detoxify funky smells and odors. If you’re not a roll-your-windows down kind of person, our mister can help you neutralize out musty scents, lingering smells of take-out, questionable perfumes, and so much more. One spare wick included. Over time, you’ll eventually need to change out the interior wick of our mister for a fresher, newer one. Your order comes with an extra wick for your convenience. Auto-shut off to help save power. After two hours of functioning, the Mini Air Purifier for Car will turn off on its own.