How do you know your UV Sterilizer working or not?

Everyone is talking about UVC sterilizers these days.

The UVC is proven to kill COVID-19 virus. But as you know the evil lies in details. Many manufacturers will not tell you the UVC dose required to kill COVID -19.

As per research done by Boston University and Signify the UV dose required for 99% reduction of COVID 19 is 30 mJ/cm^2.

Now how do you check that your Sterilizer is giving enough UV dose in given cycle time to kill COVID 19?

Use Ultroz UVC Indicator. This indicator has simple and easy to use color changing indicator which changes color from Yellow to shades of brown depending on the UVC dose received. It has four color shades corresponding to 50,100,150 and 200 mJ/cm^2.