Filtrete 16x25x4 Air Filters, MPR 1000, MERV 11, Allergen Defense 12-Month, 4-Inch, 4 Pack

Opt for a Filtrete Allergen Defense Air Filter to transform your central heating and cooling system into a whole-home air filtration operation. This no-nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog). The actual filter size is 15.88 in x 24.56 in x 4.31 in, and it is compatible with Honeywell furnaces calling for a 4 filter.

The Filtrete Brand is the most recommended brand of HVAC Air Filters based on the US Filtrete Brand Health Tracker, Ipsos, June 2022. The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it. For optimal performance of your heating & cooling system or HVAC system, change your home air filter at least every 12 months for 4 in. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program.

This Filtrete Allergen Defense Air Filter captures more particles than fiberglass air filters and attracts and captures particles such as lint, pollen, dust, pet dander, smoke and smog. The MPR 1000 has a rating of MERV 11. You can create a change countdown in the Filtrete Smart App. Simply use the app to scan the barcode on your filter's packaging, then choose 3, 6, or 12 months for your replacement countdown. When the lifespan is up, you'll get a notification to change your filter.

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