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Breathing easier, lowering pressure: HEPA filters tested in NYC housing

NCT ID NCT05874479

Disease control Sponsor: NYU Langone Health Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jul 30, 2026 · Updated 3 times

Summary

This study tests whether using portable air cleaners with HEPA filters at home can lower blood pressure in adults with hypertension living in New York City public housing. Fine particle air pollution is linked to high blood pressure, and these devices aim to reduce indoor exposure. Over 440 participants will use either a real or sham air cleaner and measure their blood pressure daily for up to 6 months.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Portable air cleaner with HEPA filter
What this could lead to
If it works, this could show that using HEPA air cleaners at home helps lower blood pressure in people with hypertension living in areas with high air pollution.
What could go wrong
This is a relatively early-stage study (no phase) with 440 participants, so results may not apply to everyone. The effect on blood pressure may be small or not last long, and the sham group gets no real filter.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 440 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2023

Expected to finish

Mar 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 100 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * self-reported nonsmokers living in a nonsmoking household. * adults living with hypertension (HTN) from NYC public housing. Exclusion Criteria: * History of major known arrhythmias (e.g. atrial flutter or fibrillation, ventricular tachycardia). * Screening systolic BP ≥160 mm Hg or diastolic BP ≥100 mm Hg (i.e. severe hypertension by the 2017 ACC/AHA BP guideline). * A change in drug regimen in the prior 2 weeks or a planned change in drug regimen during the first 30 days for those taking antihypertensive medication. * Current smoking or living with an active smoker who smokes indoors * Planned travel out of NYC for ≥2 weeks in next 6 months * Incarcerated * Pregnant * Unable/unwilling to consent * Established cardiovascular disease * End-stage renal disease (chronic kidney disease stage IV or on dialysis) * Barrier to technology use (e.g., visual or hearing impairment) * Lung disease requiring oxygen * Cancer receiving treatment

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Conditions

The condition(s) this trial relates to.

hypertensive disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Blood pressure

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • NYU Langone Health

    RECRUITING

    New York, New York, 10016, United States

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