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Usually such masks are N95 masks. It's possible to get a variant where the air out is also filtered. I wasn't aware of this problem with many N95 masks until ve
by erokar 6y ago
Usually such masks are N95 masks. It's possible to get a variant where the air out is also filtered. I wasn't aware of this problem with many N95 masks until very recently.
- computator 6y agoThat's a very good point that the article didn't make clear. I had assumed that the exhaust is filtered. Since the airline agents don't have an easy way to visually identify which masks do or don't filter the exhaust, it seems that the airline decided to ban all of the vented masks.