Mostly it doesn't matter for normal people - https://news.ycombinator.com/item?id=22456037 https://news.ycombinator.com/item?id=22456037 I think the main benef

Mostly it doesn't matter for normal people - https://news.ycombinator.com/item?id=22456037 https://news.ycombinator.com/item?id=22456037 I think the main benefit might come from mask that you stop touching your face. But for that you don't need fancy mask..