TABLE 2.

Data collected testing both masks

Parameter	Southmedic OxyMaskTM	Hudson RCI® NRB MaskTM	F	P
End tidal carbon dioxide	5.2±0.35	5.8±0.61	29.37	<0.001
Oxygen	61.8±16.17	57.0±19.03	24.17	<0.001
Inhaled carbon dioxide	2.2±.52	3.0±1.13	54.60	<0.001
% drop	83.1±6.85	63.8±13.52	41.72	<0.001

Data presented as mean ± SD unless otherwise indicated