Dynarex Disposable LMA (Laryngeal Mask Airway)Dynarex Resp O2 Laryngeal Mask Airways (LMA) are high quality respiratory devices designed to keep patients airways open in critical care situations and during the administration of anesthesia. The Laryngeal Mask Airway features a contoured, inflatable cuff to help provide a direct, sealed route to the lungs. The LMAs simple design makes it relatively easy to place and allows for blind intubation, even by less experienced practitioners.