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Results 1 - 1 of 1 for Dividing wall
  1. Clean Air at Home Video (American Lung Association)  
    ... mouth, air travels down your airways, or trachea, dividing into your right or left lung via the ... there, they can irritate and corrode the alveoli wall, damaging the lungs and causing lung disease. These ...
    https://www.lung.org/.../building-type-air-resources/at-home - Videos