Scientific studies shows ultraviolet radiation is one of the best means of fighting bacteria. One of them conducted in 2022 in Australia
demonstrated the versatility of this method of disinfection: only 10 minutes of irradiation was enough to kill various strains of microorganisms. The number of remaining live cells — both in wet and dry biofilm — was less than 1%. Microorganisms such as staphylococcus, salmonella, candida, as well as fungal spores and covid-19 virus were involved in the experiment.
Bacteria and fungi easily multiply in damp conditions with poor ventilation. Wet boots are one of the best places for it to settle in. However ultraviolet shoe drying actively prevents this. One research paper
has shown that mold is unable to recover from severe drying, even if it is back in high humidity conditions for a while. Therefore, a shoe dryer can protect your feet from mold.