Best furnace air filters

Our top 2 picks

• 1

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  Filtrete 16x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox & Honeywell Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 15.88 x 24.56 x 4.31)

  The Filtrete 16x25x4 Air Filter, with an MPR 1000 and MERV 11 rating, is designed to capture microparticles such as pollen, pet dander, and smoke, making it ideal for homes with allergy sufferers or pets. This filter is compatible with Honeywell furnaces requiring a 4-inch filter and offers a 12-month lifespan, ensuring long-term performance and value. Users have praised its effectiveness in trapping dust and allergens, which are visibly collected on the filter, highlighting its superior performance compared to fiberglass options. Despite occasional shipping issues, such as caved-in corners, the filter maintains its functionality and is a top choice for enhancing indoor air quality. With its electrostatically charged media, this filter is a reliable option for those seeking to improve their home's air quality efficiently and economically.
• 2

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  Filtrete 16x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (Actual Size 15.69 x 24.69 x 0.81 in)

  The Filtrete 16x25x1 AC Furnace Air Filter is an excellent choice for homeowners seeking to improve air quality in their homes. With a MERV 11 rating and utilizing 3M's exclusive 3-in-1 technology, this filter effectively captures microparticles such as pollen, pet dander, and smoke, ensuring cleaner air flow. It is designed for optimal performance in residential HVAC systems and should be replaced every 90 days to maintain efficiency. Users appreciate its consistent quality and ease of use, frequently noting its effectiveness in trapping allergens. Moreover, the Filtrete Smart app offers a convenient filter change reminder, ensuring timely maintenance. With high customer satisfaction and a strong reputation for quality, this filter is a reliable choice for maintaining a healthy home environment.