No matter how or where you use it, the leak free design works even when inverted. This durable bulb is easy-to-use, easy-to-clean and can be disassembled for cleaning. Prior to and after each use, wash probe and bulb internally and externally with warm water and soap, then disinfect with the Universal Toy Cleaner. Recharge in only 2 hours for up to 1 hour of high-speed flow or 1.5 hours of low-speed cleansing.