COPD is characterized by lung injury and inflammation caused by noxious particles and gases, including those emanating from cigarette smoke and air pollution. Despite the clear detrimental impact of poor air quality on respiratory outcomes, regardless of smoking status, to investigators' knowledge, there are no studied environmental interventions targeting indoor air quality to improve respiratory health of smokers, thus ignoring a potential target for harm reduction. Investigators propose a randomized controlled intervention trial to test whether targeted reductions of multiple indoor pollutants (PM, SHS and NO2) in homes of smokers with COPD will improve respiratory outcomes. Investigators have chosen a potent, multimodal intervention (active air cleaners + Motivational intervention for SHS reduction) in order to maximize the opportunity to prove that there is a health benefit to active smokers with COPD from indoor air pollution reduction.
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Change in Quality of Life -St. George's Respiratory Questionnaire (SGRQ)
Timeframe: Baseline and 6 months
Change in Dyspnea as Assessed by the University of California San Diego Shortness of Breath Questionnaire (SDSOBQ)
Timeframe: Baseline and 6 months