Why Do We Need VIOLET to Treat And Sterilize Air?

1- Research confirms that indoor air quality - where we spend most of our time - can be 7 times more polluted than outdoor air 7 times more dirty than outdoors.
2-  In order to clean the room air efficiently 99.9%, ACH should not be less than 3 cycles per hour
3- Viruses and particles released during sneezing and cough can be suspended in the air for up to 45 minutes.

ACH: Air Change per Hour
Ref: J.L. Perry, J.H. Agui and R. Vijayakumar, “Submicron and Nanoparticulate Matter Removal by HEPA-Rated Media Filters and Packed Beds of Granular Materials”, May 2016, NASA STI Program.