Philips avent microwave sterilisers compact design makes it ideal for travel or for use at home despite its small size it has a large capacity it is the only microwave steriliser that fits 4 bottles meaning youll always have a complete feeding set at hand extra protection through natural steam sterilisation sterilising is all about protecting your baby from particularly harmful milk bacteria until its immune system is strong enough the philips avent microwave steriliser uses the hospita