10 Best Reusable Furnace Filters 2025 in the United States

The Filtrete 24x24x1 AC Furnace Air Filter comes in a convenient 6-pack, making it suitable for those who want a long-term solution for keeping their home's air clean. The filters have a MERV 5 rating, which means they can capture larger particles like dust and lint but may not be as effective against smaller particles like bacteria or smoke. This makes them a good option for general household use but less ideal for those with severe allergies or respiratory issues.

Made from polypropylene, these filters are lightweight and easy to handle, with actual dimensions slightly smaller than the nominal size—23.81 x 23.81 x 0.66 inches—ensuring a good fit for most systems. The recommended cleaning frequency is every three months, which aligns with standard maintenance practices, although this could be more frequent in homes with pets or high dust levels.

One of the key features is the 3-in-1 technology designed to enhance particle capture while allowing for efficient airflow. The airflow resistance is generally low, which means it won’t strain your HVAC system, but it also implies less filtration capability. This product is versatile and compatible with various systems, including air conditioners and furnaces. The subscription option for automatic delivery is a convenient feature for those who prefer not to worry about reordering.

The Filtrete 12x24x1 AC Furnace Air Filter by 3M offers solid performance for those looking to improve air quality in their homes. With a MERV 11 rating, it efficiently captures particles like pollen, dust, and pet dander, which can be beneficial for households with allergies or pets. The 3-in-1 technology enhances airflow while trapping unwanted particles, contributing to a healthier indoor environment.

The filter is made of durable polypropylene and designed to last up to three months, after which it can be cleaned to maintain efficiency. However, it’s essential to replace or clean the filter regularly, as a dirty filter can reduce airflow and strain your HVAC system, leading to higher energy costs. This product comes in a pack of two, providing a six-month supply for most households, and fits into standard 12x24x1-inch slots.

Users can benefit from the Filtrete Smart app that offers reminders for filter changes, ensuring optimal performance. It is important to note that this filter is well-suited for residential use, but not for commercial settings. The dimensions listed might be slightly off (actual size 11.719x23.72x0.85 in), so measure your system carefully. Additionally, the filter has a slight airflow resistance, which might not be suitable for systems that struggle with strong airflow. In conclusion, the Filtrete furnace filter is an excellent option for residential use, particularly for families concerned about allergens and indoor air quality.

The Filtrete 16x25x1 AC Furnace Air Filter is a high-performing option with a MERV 13 rating. This means it effectively captures a wide range of particles, including allergens, bacteria, and viruses, making it a great choice for those with allergies or respiratory concerns. The filter uses electrostatic material, which enhances its ability to trap microscopic particles while maintaining good airflow. It is designed to outperform traditional fiberglass filters and is not washable, so it needs to be replaced every three months, which might be a downside for those looking for a more sustainable option.

The filter dimensions are 15.719x24.72x0.78 inches, so it’s important to ensure it fits your system properly. It comes in a convenient 2-pack for easy replacement. One potential drawback is the need for frequent replacements, which could add up over time. Additionally, users should be aware that higher MERV ratings can sometimes increase airflow resistance, although this filter is designed to minimize that issue.

This filter is ideal for homes needing strong filtration to improve air quality, but the recurring costs and specific fitting requirements are considerations to keep in mind.