Respiratory Respiratory problems can be as minor as the common cold or as serious as pneumonia. They may affect the upper respiratory system (nose, mouth, sinuses, and throat) or the lower bronchial tubes and lungs. We carry CPAP, BiPAP, and Bi-Level products including machines, masks, humidifiers, filters, cushions, and mask parts from every top manufacturer. These items include brands such as Respironics, ResMed, DeVilbiss, Fisher & Paykel, and Puritan Bennett. Carrying the largest variety .