Nose Brace's structure is designed and contoured to comfortably wedge between the side wall of the nose and the septum (middle wall), thus very effectively keeping the nasal air way open.  Specifically, the small ring of the Nose Brace is designed to be positioned at the nasal valve area. The small ring acts as a replacement (removable) nasal valve.  The nasal valve, the section of the nasal passage between the nostril area and the nasal cavity, is the narrowest air way passage in human nose.  This area and its immediate surrounding are the source of the majority of the obstructive nasal breathing problems.  Thus, the Nose Brace directly and very effectively penetrates and keeps the nasal valve area open.