Using a HEPA air purifier at home for just one month may improve brain function in adults over 40, new research finds — with gains similar to those seen from increased exercise.

The small study looked at adults in a neighborhood with a high level of air pollution from nearby highways.
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HEPA air purifiers may boost brain power in adults over 40 – new research

The gain isn’t huge, but it’s a notable improvement – similar to what people experience when they start exercising more.

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