This is a sterilizer that decontaminates the hands of users by means of a short wave frequency light, very similar to UV light, which is already used in other fields to purify water and air. This solution achieves total hygiene both in the domestic and public environments. Apart from its originality, Valentin Vodev has highlighted its social purpose: “This is an intelligent proposal that may contribute to the solution of the hygiene problem in public spaces, and can be implemented  and scaled for a global use”