Multi-Center Clean Air Randomized Controlled Trial in COPD
This is a multi-center randomized, sham-controlled clinical trial to determine the effectiveness of an air cleaner intervention aimed at improving indoor air quality on reducing COPD exacerbation risk and improving quality of life, functional status, rescue medication use.
Age ≥ 40 years. [+5]
Living in a location other than home (e.g., long-term care facility, nursing hom... [+8]