3M Disposable Furnace Filter 20x 24''x 1''
Filtering Technology: Electrostatic/Electronic
Avoid the chore of washing a permanent filter. Replace this inexpensive, disposable filter seasonally. 3M patented, electrostatically charged Filtrete fibers are permanently charged to attract and retain micro-particles. Lasts 3 months. Facts to Consider: Outperforms all competitors 3 month filters Captures: Airborne microparticles, including smoke Airborne allergens, including pollen, pet dander, mold and bacteria Large particles like dust and lint Meets the American Lung Association Health House Indoor Air Quality Guidelines 3M - 1000 Performance Rating, MERV 11 Performance Rating
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