Chronic obstructive pulmonary disease (COPD) is not a single illness, but rather a group of progressive lung conditions that block airflow and make breathing increasingly difficult:
In healthy lungs, oxygen slips right into your bloodstream through tiny air sacs. But when you have COPD, those air sacs get damaged—so less oxygen gets into your blood.
That means your heart has to work overtime, you feel tired and foggy, and even walking to the shower can leave you breathless. Your body just can’t run on low oxygen.
That’s why extra oxygen therapy is a game-changer for so many people with COPD.
