# Indoor Air Quality and Respiratory Symptoms in Former Smokers

> **NCT02956213** · NA · COMPLETED · sponsor: **Intermountain Health Care, Inc.** · enrollment: 52 (actual)

## Conditions studied

- Chronic Obstructive Pulmonary Disease

## Interventions

- **OTHER:** HEPA portable air filter
- **OTHER:** Sham Control/Active Comparator

## Key facts

- **NCT ID:** NCT02956213
- **Lead sponsor:** Intermountain Health Care, Inc.
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2016-11
- **Primary completion:** 2019-05-15
- **Final completion:** 2019-06
- **Target enrollment:** 52 (ACTUAL)
- **Last updated:** 2019-06-13


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02956213

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02956213, "Indoor Air Quality and Respiratory Symptoms in Former Smokers". Retrieved via AI Analytics 2026-07-02 from https://api.ai-analytics.org/clinical/NCT02956213. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*