2 ms·

Okay I put a disclaimer right on the front and we are typing up an explanation right now. Thank you for this feedback! https://www.armbrustusa.com/pages/mask-t

• bagacrap 5y ago
  thanks! all the notes about fit will be very helpful, including how to use the extra accessories you mentioned above. For example I found this study on beard length which made me reconfigure my facial hair: https://www.nature.com/articles/s41370-021-00337-1 https://www.nature.com/articles/s41370-021-00337-1 The charts in that paper also make it seem that n95 *typically* has a much better seal on the face which is worth noting. I also wonder if the breathability you're measuring affects filtration, given imperfect fit. I would imagine that worse breathability would cause more air to flow around the mask rather than through it.