Indoor Air Quality and Respiratory Symptoms in Former Smokers
NCT02956213
·
clinicaltrials.gov ↗
NA
Phase
COMPLETED
Status
52
Enrollment
OTHER
Sponsor class
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
OTHER:
HEPA portable air filter
OTHER:
Sham Control/Active Comparator
Sponsor
Intermountain Health Care, Inc.