MERV 11 Furnace Filters
MERV 11 furnace filters have a 60-65% Dust Spot Efficiency. They remove particles that are 1.0-3.0 microns in size (a human hair is 60-100 microns wide). This includes particles and pollutants such as Legionella, humidifier dust, lead dust, milled flour, auto emissions, and more.
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