The space between a ceiling's insulation and the roof boards that allows air movement through the roofing system's vents, allowing moisture and summer heat buildup to escape
the system of the body that is involved in the exchange of oxygen and carbon dioxide The general term "airway" includes the mouth and nose and goes all the way to the lungs and everything in between
A person's airways are the passages from their nose and mouth down to their lungs, through which air enters and leaves their body. an inflammation of the airways