product description:
This filter is 20x20x1 with an actual size of 19.5x19.5x1. Efficiency designed to meet the air filtration efficiency criteria required to gain points toward certification in the leadership in energy and environmental design (Leeds) green building rating system. Electrostatically charged filter media captures airborne allergens smaller than 1 micron great for helping reduce airborne allergens such as bacteria, particles that carry viruses, pollen, mold spores, fine dust, and pet dander. Accumulair filter material will not support the development of mold, mildew, bacteria or other microorganisms in normal use. No chemicals added. Accumulair filters are chemical free over 30-times more efficient at capturing micro particles than ordinary fiberglass filters. Lasts up to 3 months this product is listed and rated by underwriters laboratories as Ul. Class 2.
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