The Milton Solo steriliser can be used as either a microwave or cold water single bottle steriliser, perfect for travelling. Sterilises from just 2 minutes in the microwave, the unique venting technology allows faster and better sterilisation and the unique 'lay flat' design means it can be used in any size microwave. Sterilise in 15 minutes with cold water with sterilising tablets or fluid. Solo has a watertight lid to prevent spills when on the move. Both methods of sterilisation kill viruses, bacteria, fungi and spores, and keep items sterile inside Solo for 24 hours.