Most homemade masks are doing a great job, even when we sneeze, study finds
20 Sep, 2020 | 21:22h | UTCMost homemade masks are doing a great job, even when we sneeze, study finds – MedicalXpress
Commentary on Twitter
Two layers of T-shirt cloth block droplets with >94% efficiency vs. medical masks, while being ~2x as breathable. Face coverings made from cotton allow washing and reusing, reducing environmental impact of disposable, non-biodegradable facemasks. ??? https://t.co/kyqB4XoZMl
— peter kilmarx (@PeterKilmarx) August 26, 2020