Home air filters may cut COVID-19 spread, study finds
NCT ID NCT05777720
First seen Feb 20, 2026 · Last updated May 18, 2026 · Updated 11 times
Summary
This study tested whether using box fans with special filters and improving home ventilation could reduce the spread of COVID-19 among people living together. Researchers followed 214 household members after one person tested positive. They measured how many others got sick within a week.
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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.
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
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Locations
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San Mateo Medical Center
San Mateo, California, 94403, United States
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Stanford University Medical Center
Stanford, California, 94305, United States
Conditions
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