Recently, I’ve been sent some videos as evidence that facemasks do not act as an effective means to stop the spread of a virus. The videos show a person perform a demonstration using vape smoke. The implication is that since the vape smoke passes through the mask, and viral particles are of a similar scale to smoke particles, masks are therefore pointless.
TL;DR: As a visual demonstration of mask effectiveness, this is misleading. The vape smoke introduces billions and billions more particles ... Read even more
