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Merv 11 Allergen Reduction Air Filters are in the high efficiency filter category. Our Merv 11 are the prefect choice for homes and families suffer from server allergies, asthma and other respiratory irritants. The fine synthetic media capture the majority of micro particles and in some areas may qualify you for LEED Green Building credits. Available in 3 depths, 1 inch, 2 inch and 4 inch, for superior dust holding capacity, are also available in standard and custom sizes. The Merv 11 Allergen Reduction filter can be changed every 90 days or sooner depending on the environment.
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