Can homemade air cleaners clear the air and protect health?
NCT ID NCT07815652
First seen Sep 11, 2026 · Last updated Sep 11, 2026
Summary
Researchers are studying whether do-it-yourself air cleaners placed in homes, along with an educational video about indoor air quality, can reduce exposure to fine particles and improve health. The trial enrolls 550 people aged 7 and older in Colorado's San Luis Valley and West Denver who do not already own an air cleaner. Participants receive the cleaner and video at different times, and researchers track indoor particle levels, respiratory symptoms, and mental health measures to see how well the approach works and how easily it can be carried out in low-resource communities.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A do-it-yourself air cleaner placed in the home plus a 'Breathe Clean' educational video
- What this could lead to
- If the approach works, low-cost DIY air cleaners could give rural and urban families a practical way to reduce indoor particle pollution and ease breathing problems.
- What could go wrong
- DIY air cleaners may not cut indoor pollution enough to change health measures, and people may not use or maintain them consistently. The study measures short-term markers, so any benefits could be small or hard to detect.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 550 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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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
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7 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Resides in the San Luis Valley or West Denver areas of Colorado * Live in their home at least 9 months of the year * At least 7 years old Exclusion Criteria: * Owns an air cleaner * Does not speak Spanish or English
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
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How to take part
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The official record
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