These are replacement parts for the flexible mask. Includes 1 nose clamp and 2 filter covers.
Just because I have to say it again:
THIS FACE MASK HAS NOT BEEN APPROVED BY A PROFESSIONAL MEDICAL ORGANIZATION. TAKE CARE WHEN USING AND USE AT YOUR OWN RISK.
I have to say “use at your own risk”, but I’m using this design for my personal protection, just be smart about using it.