10 Best Home Air Filters 2025 in the United States

The Filtrete 20x20x1 AC Furnace Air Filter is a solid option for homeowners seeking basic air filtration. It comes in a six-pack with each filter designed to last up to three months, making it convenient for routine maintenance. The MERV 5 rating suggests it can capture larger particles like lint and dust but might not be as effective for smaller particles like mold spores or pet dander. This makes it more suitable for general use rather than for those needing high-efficiency filtration due to allergies or other sensitivities.

The actual size of 19.69 x 19.69 x 0.81 inches is slightly smaller than the nominal size, which is an important consideration for ensuring a good fit in your HVAC system. Its low airflow resistance means your system will not have to work harder, which can help maintain energy efficiency. However, the lower MERV rating could be seen as a drawback for those needing more advanced filtration capabilities.

Made of durable polypropylene, the filter uses Filtrete's 3-in-1 technology to attract and trap unwanted particles efficiently. The subscription option offers ongoing convenience and potential savings, making it easier to keep up with regular filter changes.

The Filtrete 20x25x1 AC Furnace Air Filter is designed to improve the air quality in your home by capturing unwanted particles. With a MERV 5 rating and MPR 300, it targets a moderate range of particles, which may be suitable for households needing basic filtration. The dimensions are slightly smaller than the nominal size, so ensure it fits your system correctly. Each filter lasts up to three months, and with six filters in a pack, you have an 18-month supply if changed regularly.

The exclusive Filtrete 3-in-1 technology is a notable feature, as it helps to trap more particles while maintaining airflow efficiency. Users seeking higher filtration for allergens or finer particles might find this MERV rating insufficient. The product is versatile and can be used in furnaces, air conditioners, or HVAC systems. The subscription option is convenient for regular replacements.

It's a lightweight product, making it easy to handle and install. Keep in mind that the warranty is limited and doesn't cover normal wear or misuse. This filter is best suited for users looking for a reliable, basic air filtration solution without the need for high-level allergen control.

The AprilAire 213 Replacement Filter is designed for those looking to improve the air quality in their homes with a focus on allergy prevention. It features a MERV 13 rating, which means it can capture a wide range of airborne particles, including dust, pollen, mold spores, bacteria, pet dander, and dust mites. This makes it an excellent choice for individuals with allergies or respiratory issues. The filter measures 20x25x4 inches, making it compatible with several AprilAire models such as 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, and Space-Gard 2200 with the Upgrade Kit 1213. A notable strength is the AprilAire Self-Seal Technology, which ensures minimal air bypass, thus optimizing the filter’s performance.

Users will also find it easy to install due to the AprilAire Interlock Rail System, which requires no assembly or additional reinforcements. However, the filter's size and specific compatibility mean it may not fit other air purifier brands or models. Additionally, while the pack includes two filters, the 3.44-pound weight per filter may be slightly heavier compared to other filters, which could be a consideration for some users. The filter's synthetic fiber material is durable and effective but might raise concerns for those preferring natural materials.

This product was first available in 2012 and continues to be manufactured, indicating a trusted and reliable option in the market. Being made in the USA and partnering with the American Lung Association adds to its credibility.