I can work out in this mask. It fits well and securely which is the key to protection. Hours in this mask is no strain.
Love the way they fit and ware.
High quality, great fit. The only mask I wore throughout the pandemic. They really work.
PureMSK White Large (Regular)
I teach primary school and have worn a PureMSK every school day, since August of 2020. These are the most comfortable and have the best fit of the many masks that I have tried. I absolutely recommend these masks.