This Microwave Steam Sterilizer ensures you have up to 4 sterile bottles in just 4 minutes** When the lid is closed properly, freshly steamed contents stay sterile for up to 24 hours* This sterilizer kills microbes and viruses†, meaning you can protect your baby without using chemicals The Mirco-Steri uses 100% natural steam to clean your baby bottles Made in UK. Kills virusesand 99.9% of bacteria: Our sterilizer uses steam to kill 99.9% of harmful bacteria & viruses, meaning you can protect your baby without using chemicals. Time efficient: Thanks to a quick sterilization cycle of just 4 minutes, Tommee Tippee’s Microwave Steam Sterilizer ensures you have up to 4 clean, sterile bottles in time for baby’s next feed. Save time and stay organized: When the lid is closed properly, freshly steamed contents stay sterile for up to 24 hours, so you can sterilize your bottles and other feeding accessories in advance. Compatibility: Use this microwave sterilizer with baby bottles from other brands as well as soothers, breast pumps and other feeding accessories. Compact and lightweight: Large enough to hold a selection of baby bottles and accessories but measuring only 24cm wide, it’s designed to fit most standard home microwaves and is lightweight for travelling.