Sure, but if 90% of the air is going through the respirator then N95 gets you 86% filtration while N99 gets you 89%. Which makes me think that once you get to a mask that does serious filtering, the main consideration is how well it fits? Which varies a lot: I’ve tried several different and 95 masks, and now have one that I feel fits pretty well on my face.
Sure, but if 90% of the air is going through the respirator then N95 gets you 86% filtration while N99 gets you 89%. Which makes me think that once you get to a mask that does serious filtering, the main consideration is how well it fits? Which varies a lot: I’ve tried several different and 95 masks, and now have one that I feel fits pretty well on my face.