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The Clean Air Study: HEPA Purifiers to Improve Indoor Air Quality and Health in Rural Alaska Homes

NCT06534385 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 15

Last updated 2025-02-27

No results posted yet for this study

Summary

Alaska Native children experience a high burden of respiratory disease, especially those in the Yukon-Kuskokwim (YK) Delta. Studies have shown that things like wood stove use, poor ventilation, and indoor tobacco smoke exposure can lead to poor indoor air quality inside the children's homes. This leads to more frequent and more severe respiratory infections in children.

In the Yukon-Kuskokwim (YK) Delta, it's common for homes to have exposure to woodstoves and tobacco use. Both of these activities affect indoor air quality in homes. We know that high efficiency particulate air (HEPA) purifiers can reduce particulate matter and make air quality better. One way that we measure air quality is through particulate matter (PM2.5). One of the few studies that looked at this in the YK Delta found that PM2.5 levels that were nearly twice as high as homes with woodstoves in other states. We believe it is important to reduce the PM2.5 in YK Delta homes. However, the few studies that looked at HEPA purifiers in rural Alaska did not include homes where smokers lived.

We know that breathing air with PM2.5 harms the lungs. We also know that HEPA filters can reduce PM2.5, which can mean reducing cough and wheeze in people with chronic lung conditions. We want to learn how HEPA filters work in homes with woodstoves or where a smoker lives, as it's likely these homes may have more PM2.5 than other homes. We expect that using HEPA filters will make the indoor air better and will mean decreased respiratory symptoms.

We plan to include 15 households with a child less than 5 years old in the family. Households that join will be asked to:

* Set up study equipment in their homes.
* Run the study equipment for 12 weeks and do a weekly report of child's respiratory symptoms by phone or text.
* Return the air-quality monitor equipment to the study team and keep the HEPA filters.

Conditions

  • Air Pollution, Indoor

Interventions

DEVICE

Air purifier

Winix HEPA air purifier

Sponsors & Collaborators

  • Alaska Native Tribal Health Consortium

    lead OTHER

Study Design

Allocation
NA
Purpose
PREVENTION
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Max Age
5 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-11-25
Primary Completion
2026-04-01
Completion
2026-04-01

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06534385 on ClinicalTrials.gov