Just to clarify your intent there: do mean you _must_ breathe through your nose or that you _must_not_ breathe through your nose? (And what on earth is a Nose Strip?)

If this requires mouth-breathing, it's a non-starter for me :(. (Radiation treatment deleted many of my salivary glands, so my mouth dries out, to a painful degree, very quickly, when breathing through my pie hole.)