Description: Chronic obstructive pulmonary disease (COPD) refers to permanent lung damage, usually caused by smoking, in which there is an obstruction to air flow during exhalation. The two major ...

Patients with moderate to severe chronic obstructive pulmonary disease (COPD) exhibit a disordered breathing-swallowing pattern that may account for their higher risk of aspiration pneumonia, ...

Filtering facepiece respirators (FFR) with exhalation valves, as well as a surgical mask or an unregulated face covering, can reduce a wearer’s aerosol emissions, according to a report released on ...