The device is called Baby Breeze (natural steam sterilization, and it eliminates 99.9% of germs according to the company. * 💨 Automatic hot air drying after sterilization, so you don't need to dry the bottles by hand. * 🌬 HEPA filter for the air used in drying, to reduce the entry of dust and particles during drying. For your information / used only once, almost new With complete accessories and a very clean box.