SAFETY FIRST / BEST MASK I OWN / SEALS OFF
This is the third reusable mask that I have bought and of the three that I have purchased the  RN BUTTERFLY is my favorite. It seals to my face nicely especially around my nose and cheeks. ( You may need a mask extender ) The nose bar is flexible and firm. I wear it 10 hrs a day 4 days a week with NO DISCOMFORT. Looking for a mask this is it!!!  I’m a slightly above average size man.
Rating: 5 stars