Can masks and air purifiers shield COPD patients from wildfire smoke?

NCT ID NCT07118189

Ongoing Disease control Sponsor: Kaiser Permanente Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This pilot study tests whether giving N95 masks and indoor air cleaners to 20 older adults with COPD can reduce lung flare-ups during poor air quality from wildfires. Participants are Kaiser Permanente members aged 65+ who use oxygen. The study focuses on whether this approach is practical and acceptable, not yet on health outcomes.

What this could mean

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

Active substance: N95 masks and indoor air cleaner
What this could lead to: If successful, this could show that simple protective devices help people with COPD avoid serious lung attacks during wildfire season.
What could go wrong: This is a very small pilot study (20 people) focused on feasibility, not proof of effectiveness. Results may not apply to all COPD patients.

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease

As listed by the trial registrant

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

CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) EXACERBATION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE EXACERBATION OF COPD

Contacts and locations

Locations

Kaiser Permanente Northern California Division of Research

Pleasanton, California, 94588, United States

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