How to kill the viruses easily and conveniently?

 News     |      2020-05-12 12:27
UV Sterilizing Lamp
in 15s kill all the viruses, 

Disposable faceMask now is expensive, acturelly if there are no viruses on, it can be reused.
but how to kill the virus easily and conveniently, here is the solution
Multifunction ultraviolet Sterilizer light