Collision Resistance@lemm.ee to World NewsEnglish · 1 year agoNew Covid wave has begun and masks should be worn again, scientists warnwww.independent.co.ukexternal-linkmessage-square830fedilinkarrow-up11.04Karrow-down175cross-posted to: world@lemmy.world
arrow-up1967arrow-down1external-linkNew Covid wave has begun and masks should be worn again, scientists warnwww.independent.co.ukCollision Resistance@lemm.ee to World NewsEnglish · 1 year agomessage-square830fedilinkcross-posted to: world@lemmy.world
minus-squarePiers@beehaw.orglinkfedilinkEnglisharrow-up2·1 year agoThe thing specifically to avoid are ones with valves. Anything else with reasonable filtration will protect others.
The thing specifically to avoid are ones with valves. Anything else with reasonable filtration will protect others.