Key takeaways:

HEPA filtration was linked to lower blood pressure in people with systolic BP of 120 mm Hg or more.

Air filters may benefit the cardiovascular health of individuals living near high-volume roadways.

Air purifiers may help improve blood pressure control among people living with high concentrations of airborne particulate matter, such as near high-volume roadways, researchers reported.

Approximately one-quarter of Americans live near high-volume roadways, according to a study published in the Journal of the American College of Cardiology .

Researchers conducted a randomized crossover trial evaluating the impact of high-efficiency particulate arrestance (HEPA) on BP vs. sham among people living near Interstate Highway 93 in and around Boston.

“We had been studying the

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