Nasal Cannula Adjustments
Place the cannula underneath your nose with the shorter pair of prongs resting under your nostrils. The longer prongs will curve slightly in towards your mouth.
The longer prongs should rest just in front of the upper lip to measure breathing from the mouth, and can be trimmed with scissors if necessary.
The headband fits around your head and over the ears. Pull on the ends of the band to adjust the fit of the cannula.