Claim: Cloth masks cannot block smoke particles which are larger than viruses, so masks cannot stop virus transmission
Fact-check: Cloth masks are effective at reducing virus transmission because it spreads in respiratory droplets, which are larger than smoke particles and the pores in fabric - Science Feedback
Verdict: misleading
Organisation: Science Feedback
Author: Flora Teoh
Date published: 2020-09-15T09:59:37