Clinical Trial of Air Cleaners to Improve Indoor Air Quality and COPD Health
Public ClinicalTrials.gov record NCT02236858. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT02236858
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Johns Hopkins University
- Other
- Enrollment
- 142 participants
Conditions and interventions
Conditions
Interventions
- HEPA Air Cleaner Device
- Sham HEPA Air Cleaner Device
Device
Eligibility (public fields only)
- Age range
- 40 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 28, 2014
- Primary completion
- Feb 20, 2020
- Completion
- Sep 9, 2021
- Last update posted
- Sep 13, 2021
2014 – 2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Johns Hopkins University | Baltimore | Maryland | 21224 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02236858, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 13, 2021 · Synced May 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02236858 live on ClinicalTrials.gov.