What is Nasal Airway Obstruction?

Nasal breathing normally delivers 70% of airflow to the lungs.(1) More than 20 million Americans suffer from nasal
airway obstruction (NAO), which limits airflow through the nose with significant quality of life consequences.(2)
Symptoms may include:

• Difficulty breathing at rest and/or while exercising
• Reduced sleep time or sleep quality
• Reduced daytime productivity

What causes Nasal Airway Obstruction?

Even slight narrowing of the nasal passage can lead to significant reduction in airflow.(3) Structural blockages in
three areas are common:

image latera11. Lateral (side) wall: The upper/lower
cartilage in the side of your nose can flex or
collapse inward when you breathe.

2. Septum: The cartilage wall between the nostrils
can bend and block the nasal passage.

3. Turbinates: Ridges of bone and tissue inside
your nose can limit airflow when enlarged.

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