Thank you to The Free Mask Project of Vancouver for all of their hard work testing which materials are safest to use to stop spread of #covid19

Sources:
1 – freemaskprojectvancouver.com/what-fabric-should-i-use-for-my-cloth-mask
2 – who.int/emergencies/diseases/novel-coronavirus-2019/advice-for-public/when-and-how-to-use-masks