Ask HN: Far UVI breather instead of filter face mask?

Would a portable far-UVI breathing apparatus be a better approach to virus proofing than particulate filter face masks or respirators? Background info links https://www.hepacart.com/blog/effective-uv-disinfection-lights-4-benefits-of-far-uv-sterilray https://fastlifehacks.com/n95-vs-ffp/