Troubleshooting How to clean my Philips Sonicare toothbrush / brush heads? Keeping you Philips Sonicare clean is a great way to improve the lifespan of your electric toothbrush. So you can enjoy your new toothbrush for years to come. Sonicare toothbrushes and brush heads Snap on brush heads: Remove the brush head and rinse the metal shaft area with warm water. Make sure you remove any residual toothpaste. Do not push the rubber seal on the metal shaft with sharp objects, as this may cause damage. Use a damp cloth to wipe the entire surface of the handle (do not use isopropyl rubbing alcohol, vinegar, or bleach to clean your handle or brush heads, as this may cause damage. Allow to air dry Screw on brush heads: Rinse the brush head and bristles after each use. Let the brush head air-dry only. Clean the brush head at least once a week, including under the plastic nut. Gently press on the rubber seal to remove the nut. Do not use sharp objects to press on the seal, as this may cause damage. To reattach the nut, slip the nut over the brush head shaft and pull it down until it snaps home. Clean the handle periodically with mild soap and a moist cloth and allow to air-dry.