The Philips Avent 3-in-1 Electric Steam Baby Sterilizer unique modular design enables you to fit the bottles and accessories flexibly, and organize them easily. The sterilizer uses natural steam to sterilize baby bottles and other products, killing 99.9% of harmful germs without using chemicals. The sterilizing cycle lasts just 6 minutes. After this time, the sterilizer automatically shuts off. The sterilizer is suitable for use with both standard neck and wide neck baby bottles. It also fits other baby products like breast pumps and accessories.