New oxygen device aims to ease breathing at home for chronically ill patients

This study tests whether a new type of home oxygen therapy, called high-flow nasal cannula (HFNC), can improve breathing comfort and quality of life for people with long-term lung or heart conditions. Participants will try both HFNC and standard oxygen therapy for two weeks each to compare effects. The goal is to see if HFNC reduces shortness of breath and helps patients feel better at home.