Medical equipment for the screening, diagnosis and treatment of patients with sleep disordered breathing and comorbidities thereof, namely, nasal masks, nose and mouth masks, full face masks, nasal prongs, nasal canulae, nasal pillows, and nasal seals, mechanical ventilators, continuous positive airway pressure flow generators, bilevel flow generators, automatically titrating continuous positive airway pressure flow generators, adaptive servo ventilators, humidifiers, polysomnography equipment and parts and accessories therefor, namely masks, air cushions, mask frames, headgear assemblies, headgear clips, access port plugs, elbow assemblies, air tubing, air tubing connectors, air filter assemblies, fitting templates