Yes! it is safe to use your Sonicare toothbrush in the shower or bath. If you are using the PowerUp toothbrush with replaceable batteries, the battery cap must be attached in order to use in the shower or bath. To optimize the life and performance of your product, ensure your toothbrush and brush head are allowed to air-dry completely between uses.

NOTE:  NEVER place your charger where it might risk contact with water!  The charger cannot be used in the shower or bath.