Nasal strip
The nose has the important function of first contact with inspired air. The nose accounts for approximately half of the total airway resistance to airflow. Nasal obstruction can contribute to an increase in snoring and sleep apnea frequency and severity. Snoring sounds have been associated with increased upper airway occlusion. Upper airway narrowing, collapsibility and resistance are recognized factors contributing to snoring and obstructive sleep apnea. Everybody suffers from blocked nasal passages at one time or another. Congestion and stuffy noses are symptomatic of colds, influenza, hay fever, allergies, and other common maladies. More serious sinus problems, such as deviated septums, also may cause nasal congestion and/or constriction of the nasal passage. Nasal dilators have been suggested for aiding breathing through the nose during snoring, athletic events, and for treating the symptoms of the common cold or flu. Nasal dilators are generally of the internal or external variety. Internal nasal dilators are placed inside the interior of the nose and act to urge the nostril wall tissues outward, to enhance breathing. External nasal dilators typically use a flat, semi-rigid spring member flexed across and extending on each side of the bridge of the nose adjacent the nasal valve. Nasal strips are affixed to the outside of the nose and exert outward forces on the nasal cartilages of the nose, thereby allowing the nasal passages to be pulled open. This enables enhanced air flow through the nasal passages, thereby allowing the user to breathe more efficiently.