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Exceeds Fiberglass, Washable and Non Electrostatic, 3 Month Pleated 1 Inch. Air filter for your oven, air conditioning or HVAC system. Designed with exclusive Filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while allowing cleaner air to pass through. Attracts and traps particles such as lint, pollen, dust, pet dander, smoke and smogRPA2023. RPA202023 23202 31000 MPR has a rating of MERV 11 . The higher the MPR, the more microparticles - such as pollen, pet dander, smoke, bacteria and viruses - your filter will be trapped by the air that passes through it › See more product details; Product description 3-month filter to detect microscopic allergens such as dust, smoke and smog and large allergens such as mould spores and animal dandruff.; Product description 3-month filter to detect microscopic allergens such as dust, smoke and smog and large allergens such as mould spores and animal dandruff.; 3-month filter to detect microscopic allergens such as dust, smoke and smog and large allergens such as mould spores and animal dandruff.