Use the Tunnel Vent brush to create root lift and volume for your hair and to give some direction and movement. Great for easing out tangles on medium to thick hair and for short basic styles. Primary Features: Antibacterial Purification System Purifies & Removes Odors from Hair Special Ionic Coating Silver Nano Technology: Kills Germs and Bacteria Eliminates Odors Generates Beneficial Negative Ions Ionic Technology: Hair is More Manageable, Shinier and Softer Humidity-Proof Styles that Last Longer Faster Drying Time Prevents Frizz and Split Ends