{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=N95+mask",
    "query": {
      "intervention": "N95 mask"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 19,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=N95+mask&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-07T18:26:22.022Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT03744871",
      "title": "Air Pollution: Strategies for Personalized Intervention to Reduce Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Air Pollution"
      ],
      "interventions": [
        {
          "name": "N95 Respirator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University Hospitals Cleveland Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2019-03-22",
      "completion_date": "2023-07-31",
      "has_results": false,
      "last_update_posted_date": "2023-12-04",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03744871"
    },
    {
      "nct_id": "NCT06090370",
      "title": "Reducing Silica Exposure Among Brick Kiln Workers in Nepal",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Silicosis"
      ],
      "interventions": [
        {
          "name": "N95 Respirator",
          "type": "DEVICE"
        },
        {
          "name": "Protective Eyewear",
          "type": "DEVICE"
        },
        {
          "name": "Baseline Survey",
          "type": "OTHER"
        },
        {
          "name": "Design of Workshop",
          "type": "OTHER"
        },
        {
          "name": "Training Workshop Pilot",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 98,
      "start_date": "2024-01-24",
      "completion_date": "2024-06-20",
      "has_results": false,
      "last_update_posted_date": "2024-06-24",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Durham, North Carolina",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06090370"
    },
    {
      "nct_id": "NCT04854694",
      "title": "Product Testing of the FaceView Mask™: Usability Survey",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hearing Disability"
      ],
      "interventions": [
        {
          "name": "FaceView Mask™",
          "type": "DEVICE"
        },
        {
          "name": "conventional surgical N95 respirator",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Arkansas",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 202,
      "start_date": "2022-11-15",
      "completion_date": "2024-02-29",
      "has_results": true,
      "last_update_posted_date": "2025-04-10",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Little Rock, Arkansas",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04854694"
    },
    {
      "nct_id": "NCT03079843",
      "title": "Particulate Matter, Blood Pressure, and the Sympathetic Nervous System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Air Pollution"
      ],
      "interventions": [
        {
          "name": "exposure to particulate matter with N 95 facemask",
          "type": "OTHER"
        },
        {
          "name": "exposure to particulate matter with no face mask",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 50,
      "start_date": "2017-04-07",
      "completion_date": "2019-04-30",
      "has_results": false,
      "last_update_posted_date": "2019-05-02",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03079843"
    },
    {
      "nct_id": "NCT07711145",
      "title": "Reusable, Transparent, and Reconfigurable N95-equivalent Respirator Masks: Design, Fabrication, and Trials for Enhanced Adoption",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Focus is on Healthy Subjects"
      ],
      "interventions": [
        {
          "name": "Reusable, Transparent, and Reconfigurable N95-Equivalent Respirator Masks: Design, Fabrication, and Clinical Trials for Enhanced Adoption",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "SEEUS95 Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 20,
      "start_date": "2025-06-26",
      "completion_date": "2025-08-14",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07711145"
    },
    {
      "nct_id": "NCT04733677",
      "title": "User Experience of the OSR M-1",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 21,
      "start_date": "2021-03-19",
      "completion_date": "2022-11-15",
      "has_results": false,
      "last_update_posted_date": "2023-03-30",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04733677"
    },
    {
      "nct_id": "NCT04591756",
      "title": "Effectiveness of Respiratory Protection During Simulated Resuscitation: a Prospective Cohort Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Occupational Exposure"
      ],
      "interventions": [
        {
          "name": "Qualitative Fit Testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2020-10-26",
      "completion_date": "2020-11-04",
      "has_results": false,
      "last_update_posted_date": "2020-11-09",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04591756"
    },
    {
      "nct_id": "NCT04415879",
      "title": "Effects of a N95 Respirator vs Cloth Mask on Exercise Capacity During Treadmill Exercise.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "N-95 Respirator",
          "type": "OTHER"
        },
        {
          "name": "Cloth Face Mask",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2020-06-01",
      "completion_date": "2020-08-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-11",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04415879"
    },
    {
      "nct_id": "NCT04826809",
      "title": "New Reusable Mask Design With Superior Filtration and Fit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19",
        "Tuberculosis",
        "Respiratory Viral Infection"
      ],
      "interventions": [
        {
          "name": "N95 mask",
          "type": "DEVICE"
        },
        {
          "name": "Nordell single E-100 layer mask",
          "type": "DEVICE"
        },
        {
          "name": "Nordell double E-100 layer mask",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2021-04-09",
      "completion_date": "2022-10-27",
      "has_results": true,
      "last_update_posted_date": "2023-07-07",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "Mankato, Minnesota",
      "locations": [
        {
          "city": "Mankato",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04826809"
    },
    {
      "nct_id": "NCT04761679",
      "title": "Nasal Bridge Pressure Injury Prevention",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pressure Ulcer of Skin",
        "Pressure Injury"
      ],
      "interventions": [
        {
          "name": "Applying the Mepilex foam",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 12,
      "start_date": "2021-03-23",
      "completion_date": "2022-01-04",
      "has_results": false,
      "last_update_posted_date": "2022-05-19",
      "last_synced_at": "2026-09-07T18:26:22.022Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04761679"
    }
  ]
}