Best Furnace Filters for Air Cleaner of 2026

The Filtrete AC Furnace Air Filter is designed with exclusive 3-in-1 technology to capture unwanted air particles and outperforms other 1 in. filters. With a MPR 1000 rating, it captures pollen, pet dander, smoke, bacteria, and viruses. For optimal performance, change the filter every 90 days to avoid slowing down air flow and wasting energy. Use the Filtrete Smart app to create a change countdown and receive reminders for filter replacement. Suitable for residential use only.

Filtrete Air Filter is a 2-pack MERV 11 filter that outperforms washable and non-electrostatic 3-month pleated 1 in. home air filters. It is designed with exclusive Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. This filter attracts and captures particles such as lint, pollen, dust, pet dander, smoke, and smog. With a rating of 1000 MPR, the higher the MPR, the more microparticles this filter will capture from the air passing through it. It is the perfect filter for your furnace, air conditioner, or HVAC system.

The Filtrete 20x25x1 Air Filter MPR 300 MERV 5, Clean Living Basic Dust, 6-Pack is a pleated air filter that outperforms washable, non-electrostatic, and fiberglass filters for residential use. It features Filtrete Brand 3-in-1 technology to capture unwanted air particles, such as lint, dust, and dust mite debris. The filter attracts and captures large particles, and it has a MERV 5 rating. The higher the MPR, the more microparticles, such as pollen, smoke, and pet dander, the filter will capture. Optimal performance of your HVAC system requires changing the filter every 90 days to prevent slowing down air flow and wasting energy. The Filtrete Smart app allows you to create a change countdown using your phone.

The Simply Air Filter is designed to fit most HVAC systems, providing effective dust, pet dander, and pollen filtration. With its advanced pleated technology, these filters ensure optimal airflow while capturing up to 90% of airborne particles, helping you maintain a cleaner indoor environment. You can enjoy hassle-free installation, allowing you to replace your filters easily and keep your air conditioning units running efficiently. Plus, made in the USA with recycled materials, this product not only supports local manufacturing but also guarantees quality you can trust.

The Filtrete AC Furnace Air Filter has an actual filter size of 19.56 x 24.13 x 4.75 inches and is compatible with TrionAirBear furnaces calling for a 5" filter. With a MPR 1550 DP rating and MERV 12 rating, this filter captures and attracts microparticles such as pollen, pet dander, bacteria, and viruses. It is recommended to change your filter every 12 months for optimal performance and energy efficiency. The Filtrete Smart App allows users to create a change countdown and receive notifications when it's time to change the filter.

The Filtrete AC Furnace Air Filter is a 2-pack, 1-inch pleated filter designed to outperform washable, non-electrostatic, and fiberglass filters. It features 3-in-1 technology from 3M to trap unwanted air particles while allowing clean air to flow through. The filter captures microscopic particles such as smoke, bacteria, viruses, and large particles like pollen, household dust, and lint. With a 1500 MPR rating, this filter has a MERV 12 rating and captures more microparticles than lower MPR rated filters.

The Filtrete Furnace Filter offers exact dimensions slightly different from nominal size, ensuring a precise fit for your Honeywell and Space-Gard media air cleaners. This 2-pack is designed to provide year-long use, helping you keep your home's air fresh and clean. With a high MPR 1000 and MERV 11 rating, it captures twice as many tiny particles as standard filters, which means cleaner air for you and your family. The exclusive Filtrete 3-in-1 technology effectively traps dust, allergens, and other unwanted particles, allowing only clean air to flow through your system. This filter is a smart choice for maintaining a healthier home environment.

The Filtrete Air Filter is a 4-pack of 12-month pleated 4-inch filters that help capture unwanted particles from your household air, creating a cleaner and fresher home environment. With its exclusive Filtrete 3-in-1 technology, this air filter is designed to pull in and trap unwanted particles, allowing cleaner air to flow through. With a 1000 MPR and MERV 11 rating, it effectively captures many microparticles and large particles from the air passing through it, making the air cleaner. Compatible with Honeywell furnaces calling for a 4" filter and Lennox furnaces calling for a 5" filter, it offers versatile uses. For optimal performance, it is recommended to change the filter at least once every 12 months. Additionally, you can subscribe and save 10% on your orders. Filtrete is the No. 1 recommended HVAC Air Filter Brand, providing breakthrough technology to create a cleaner and healthier home for you and your family.