HEPA can capturing airborne virus- COVID-19
The US CDC had tested the HEPA filter can capture airborne COVID-19.
Our N95 HEPA Nose Mask can filter PM2.5 particle size more >95% and with silver ions sprayed on HEPA H11 in 2020. So our nose mask can help you to protect you since there is no air leaking.
Dr. Colin said that the medical face mask can not brock airborne due to air leaking. The N95 face mask and HEPA can do according to news reports.