- Conditions
- Pediatric Asthma
- Interventions
- Portable air cleaner with HEPA filter, Less effective portable air cleaner (no HEPA)
- Device
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 6 Years to 12 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Seattle, Washington
Search Results
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 1–12
of 12
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Cardiovascular Risk Factor, Blood Pressure
- Interventions
- HEPA Air Filtration, Sham HEPA Air Filtration
- Other
- Lead sponsor
- UConn Health
- Other
- Eligibility
- 30 Years and older
- Enrollment
- 156 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Farmington, Connecticut
- Conditions
- Air Pollution, Cardiometabolic Health
- Interventions
- HEPA filter, Sham filter
- Device
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 65 Years to 84 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Asthma Control, Pulmonary Function, Quality of Life, Stress, Sleep Quality
- Interventions
- Energy Recovery Ventilator, Portable Air Cleaner, Energy Recovery Ventilator (Sham), Portable Air Cleaner (Sham)
- Device
- Lead sponsor
- The University of Texas at Arlington
- Other
- Eligibility
- 5 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2028
- U.S. locations
- 2
- States / cities
- Arlington, Texas • Plano, Texas
- Conditions
- COPD, Eosinophilia
- Interventions
- Air purifier, Sham air purifier
- Device
- Lead sponsor
- Beth Israel Deaconess Medical Center
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 178 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Air Pollution, Cardiovascular Health
- Interventions
- HEPA air filtration
- Other
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 45 Years to 80 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Air Pollution, Atherosclerosis
- Interventions
- HEPA filtration, Sham filtration
- Device
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 65 Years to 84 Years
- Enrollment
- 112 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2028
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Cardiometabolic Health
- Interventions
- air filtration with air purifier with hepa filter, sham
- Other
- Lead sponsor
- University of Michigan
- Other
- Eligibility
- 60 Years and older
- Enrollment
- 52 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- Ann Arbor, Michigan
- Conditions
- PreDiabetes
- Interventions
- PAC with HEPA filter intact, PAC with HEPA filter removed
- Device
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Viral Infection
- Interventions
- Active classroom HEPA cleaner, Sham classroom HEPA cleaner
- Other
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 6 Years to 90 Years
- Enrollment
- 200 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2030
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Cardiovascular Diseases
- Interventions
- Portable air cleaner (PAC), Sham Portable air cleaner (PAC)
- Other
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Pollution; Exposure, Smoke Inhalation, Exposure to Pollution
- Interventions
- Cigarette Smoke, Clean Air and Clean Clothing/Sham exposure
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years to 50 Years
- Enrollment
- 66 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 1
- States / cities
- San Francisco, California