Should fine-particle filters required on some near-freeway homes become standard?

More than seven months ago, I posted: “New L.A. freeway-adjacent homes getting air filtration as way to reduce indoor particles.” The post dealt with homes along Los Angeles, California- located freeways getting home particulate filters installed to filter out fine particulate matter from indoor air. Though, this only applies to homes situated within 1,000 feet […]

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