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[[File:Nasal Cannula Headband.jpg|400px|thumb|right|''"Should we see if these work on your ankles?"'']]
A '''nasal cannula''' is something that has only recently been shown to be less functional when worn as a headband.<ref>[http://gomerblog.com/2016/03/nasal-cannulas/ Study Shows Oxygen Less Functional When Nasal Cannula Worn as Headband]</ref>