An apparatus and a system for stably positioning a nasal cannula in a manner effective for oral or nasal delivery of oxygen or gas mixtures to an individual are described. A generally rectangular cannula support member having at least one retention device secures a nasal cannula to the support member. A pad may be disposed between the support member and the face of the person to assist in positioning the support member without the requirement of tape, and for reducing skin irritation. Depending on the size of the cannula support member, the support member may be constructed from flexible materials to conform to the facial features of the wearer. The apparatus and the system may further include a flexible strip having shape memory.