In this post and video below you see a comparison between the commercial uv sterilizer corona fighter box which is 200 USD and the DIY cheap sanitizer box for covid-19 virus which perfectly sterilizes the n95 masks without damaging the mask efficiency.
Things you need:
CORONA DISINFECTION BOX – https://amzn.to/2WBrHDF
Philips UV light 11 Watt – https://amzn.to/30bYnV1
Electronic Choke – https://amzn.to/2Wlt9tp
Please follow this video till the end and see the comparison of this DIY disinfection box and the commercial costly uv light sterilizer for coronavirus which is infact certified by major organisations.