Philips JC303/53 SmartClean Cleaning Cartridges (3). Unique Dual Filter system cleans hair, foam and gel, preventing hairs from clogging your shaving heads. The alcohol-free, skin-friendly formula gives you a fresh and hygienic shave, and it is designed to protect against skin irritation. The cleaning cartridges are suitable for all Philips shavers using the SmartClean system. The Dual Filtration system and active lubricationc leave your shaver up to 10 times cleaner than cleaning with water alone.