CBRN Canister Filters such as the Avon CBRNCF50 are highly effective against COVID-19 as well as many chemical and other biological agents and are in extremely high demand. If you have an Avon mask or other that accepts 40MM cartridges, you may consider getting in line now because lead-times are currently 8-12 weeks and are continuing to rise.

Check out these links from 3M about Corona-virus and Corona-virus protection:

https://multimedia.3m.com/mws/media/1791526O/respiratory-protection-faq-general-public-tb.pdf

https://multimedia.3m.com/mws/media/1792732O/respiratory-protection-faq-healthcare.pdf

https://multimedia.3m.com/mws/media/1798135O/possible-alternatives-to-surgical-n95-respirators-in-the-us-healthcare-technical-bulletin.pdf