Obstructive sleep apnea is a common sleeping disorder where the upper airways are obstructed. This leads to intermittent pausing of breathing when you are sleeping. For this condition Continuous Positive Airway Pressure (CPAP) therapy is commonly needed. This involves using a CPAP nasal mask that is connected to a small machine that pumps air into the patient’s airways. Though the treatment itself is easy and convenient, you must invest time in finding a suitable CPAP nasal mask for yourself.