Can a simple air filter lower your blood pressure? NYC study aims to find out

NCT ID NCT05874479

First seen Oct 31, 2025 · Last updated Jun 23, 2026 · Updated 32 times

Summary

This study tests whether using a portable air cleaner with a HEPA filter at home can lower blood pressure in people with hypertension living in New York City public housing. About 440 adults will use either a real air cleaner or a sham device for up to 6 months while measuring their blood pressure daily. The goal is to see if reducing indoor air pollution can help control blood pressure.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • NYU Langone Health

    RECRUITING

    New York, New York, 10016, United States

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 air cleaners at home helps lower blood pressure in people with hypertension.

What could go wrong

This is a relatively small study (440 people) and uses a sham device for comparison. Results may not apply to everyone, and the effect on blood pressure may be small or not lasting.

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.