What amount of trapped particles can be released with air current dislodging them as it flows through? If you have a really dirty filter, will the trapped parti

What amount of trapped particles can be released with air current dislodging them as it flows through? If you have a really dirty filter, will the trapped particles dislodge or will it create a sort of barrier and increase filtering efficiency? Thanks for the awesome write up. Also, I recall reading that hepa filters are the most effective at eliminating airborne particulate the higher the amount of time it has to cycle the same air in a room. Final thoughts, is using the ozone feature effective in trapping coronavirus and what about an integrated UV light that it directed on the HEPA filter, will this eradicate trapped viruses?