My 3M 9502 N95 Mask Has A Poor Seal Around The Nose, Are There Any Ways to Improve?

Some masks have rubber straps instead of the elastic/cloth straps and the former are possibly tighter around the head, thus providing a better seal.

You could try clipping the straps with a stapler or safety pin to make them shorter and hence tighter around the head.

Other than that, following the tips in this article may also help.

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