AirFloss Ultra can be used with mouthwash or water and has been proven to be just as effective as dental floss for your gum health. AirFloss Ultra removes up to 99.9% of plaque from treated areas. The clinically proven combination of air and microdroplets gently and effectively cleans between teeth and along the gum line. Cleaning between teeth is very important for overall oral health. The AirFloss Ultra makes it easy to thoroughly clean between teeth and turn healthy dental care into a habit. The Philips Sonicare AirFloss Ultra has been shown to improve gum health just like dental floss. It improves gum health in as little as two weeks.