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The PuroAir Mega Filter is a 20 x 24 x 1 inch pleated HVAC filter rated MERV 13, with an activated carbon layer added to capture odors, gases and VOCs that plain pleated filters miss. It is sold in a 2-pack and PuroAir says it lasts about three times as long as fiberglass filters. The best new price is $94.99 at Best Buy as of November 7, 2026, with four stores listing it new.
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Lowest price we've seen: $94.99 on Nov 8 at Best Buy. Tracked across 5 stores since Nov 8.
Rated 4.9 out of 5 from 319 ratings, buyers largely report cleaner-feeling air and fewer odor complaints. The main caveats are price and airflow in older systems.
Say goodbye to allergies and hello to clean air with the revolutionary PuroAir HVAC Mega Air Filter! Our high-performance carbon-activated filter is the ultimate solution for improving air quality in both residential and commercial HVAC systems. By harnessing the power of activated carbon, these MERV 13 filters reduce a wide range of pollutants that traditional fiberglass HVAC filters can't capture, including allergens 4 , harmful gases, odors 1 , volatile organic compounds (VOCs 5 ), and other airborne particles. 7 The cutting-edge technology behind carbon filtration ensures a cleaner, fresher, and healthier indoor environment, making it the perfect choice for any space where air quality matters.
Looking to take your clean air to the next level? Create the ultimate clean air environment in your home or office by combining the power of Mega HVAC Filters and the air cleaning technology of PuroAir Air Purifiers . With this whole home system, you and your loved ones will breathe easier than ever before.
Benefits of the PuroAir HVAC Mega Filter
Activated Carbon Layer: The heart of the filter is its activated carbon material, which has a highly porous surface that purifies odors 1 and gases. This makes it an effective barrier against smoke 4 , cooking odors 1 , pet smells, and other household or environmental pollutants.
MERV 13 Layer: The MERV 13 rated filter layer blocks fine air particles down to 1 micron 7 .
Pre-filter Layer: Filters larger visible air pollutants like dust 3 , pollen 4 , pet hair, and more.
Volatile Organic Compounds (VOCs 5 ): Activated carbon is particularly adept at adsorbing VOCs 5 , which are chemicals emitted from paints, cleaning supplies, and other household products. 5 Reducing VOCs 5 helps create a healthier indoor air environment by minimizing exposure to potentially harmful substances.
Odor: One of the most notable benefits of carbon-activated PuroAir Mega HVAC Filters is their ability to reduce stubborn odors 1 , such as those caused by cooking, pet dander 4 , mold 4 , and smoke 4 . This can significantly improve the comfort and freshness of indoor spaces. 7
Ideal for Sensitive Environments: These home air filters are ideal for households with allergy sufferers, asthma patients, or individuals sensitive to air quality. They are also highly effective in environments like offices, and restaurants, where air purity is essential.
Designed for Effective Airflow: When properly sized, installed, and used in a compatible HVAC system, the PuroAir HVAC Mega Filter is designed to support effective filtration and airflow. Actual performance may vary depending on the HVAC system, operating conditions, filter condition, and maintenance. Confirm that your system supports MERV 13 filtration before use.








Installation and Maintenance: Select the filter size that matches the dimensions specified for your HVAC system and install the filter in the direction indicated by the airflow arrows. Filter size alone does not establish system compatibility. Confirm that your HVAC system supports MERV 13 filtration, and consult a qualified HVAC professional if you are unsure.
100-Day Cleaner Air Guarantee: PuroAir HVAC Mega Filters are eligible for our 100-Day Cleaner Air Guarantee. See our Refund Policy for complete terms.
Features:
• MERV Rating 13
• Pleated filter to mitigate more particles 6
• Lasts 3x longer than fiberglass filters 6
• Ideal AC filter for people with allergies or respiratory issues 7