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Outperforms non-electrostatic home your furnace, conditioner, or exclusive Filtrete 3-in-1 technology 3M to trap air while flow microscopic particles such debris, bacteria lint, pollenFiltrete Performance equates MERV 13For change your air filters, and every months 4” and filters.The higher MPR, more microparticles - such as pollen, pet smoke, - your capture the air passing it.For residential use.