The Philips Sonicare AirFloss effectively and gently cleans your interdental spaces using patented air and micro-droplet technology. With a powerful pulse, the AirFloss Ultra accelerates the liquid in the tank and releases it as a fine mist of micro-droplets through the nozzle into the interdental space. This fine droplet mist of air and liquid removes up to 99.9% of plaque in the treated areas and has been shown to improve gum health just like dental floss.