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    • MERV Ratings: What Do They Mean?

      MERV Ratings: What Do They Mean?

      Bob Vila via Yahoo News· 1 day ago

      Controls pollen, dust mites, sawdust, and textile and carpet fibers. Filters down to particles 10 microns in size. MERV 5-8 Commonly used for commercial...

    • How innovation and technology cleared the air

      The Daily Sentinel· 14 hours ago

      Despite intense focus on air pollution and climate change in recent years, the link is poorly understood. There are two approaches to reducing pollution. The other approach ...