Experts have found that corona viruses, for example, can survive on surfaces for an average of four to five days at room temperature. They float in the air for a few hours before sinking to the ground or other surfaces.
This makes it all the more important that these surfaces and the air are regularly disinfected - especially in places where there are many people - to prevent the spread of disease. These places include airports, for example, but also hospitals and public transport stops. In China, a first robot prototype is currently being used for these areas, which kills viruses and bacteria using UV light.
This robot sucks in air and directs it through a channel inside the robot equipped with UV lamps. This kills up to 99.9 % of the viruses and bacteria in the air.