About 20x23x1 Air Filter
These 20x23x1 air filters are right-sized for your needs. Choose the MERV rating that suits your lifestyle and breathe cleaner air.
Fights lint, dust mites, mold spores, pollen, pet dander, and dust.
Every 60-90 DaysQualifies for Free Shipping
Pleated MERV 8 Media
Comparable to MPR 600 and FPR 5
Designed for Superior Filtration Efficiency
Made with electrostatically charged synthetic material that draws and captures allergens between 3 - 10 microns, including lint, dust mites, mold spores, pollen, pet dander, and dust.
Improve Indoor Air Quality
Protect your family and loved ones with clean indoor air quality at home. Aerostar filters are a simple and cost effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms.
Improve Efficiency and Reduce Cost
An Aerostar furnace air filter helps keep your HVAC unit working efficiently by removing dirt and reducing strain on the motor. When your unit runs properly, it consumes less energy, requires less maintenance and will have a longer life. These factors will have an impact on your utility bill and maintenance costs. It is recommended that you change the filter every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.
About Aerostar Furnace Air Filters
Aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications. The Aerostar brand is known for constantly innovating and improving their technology to help make filtration more efficient, effective and environmentally friendly every day.
About MERV, MPR and FPR Rating
The three rating systems were created by different organizations. MERV is the domestic and international Industry Standard rating system established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers. The other two rating systems were created by 3M and The Home Depot, but all are rating the same filter.
MERV Rating (Minimum Efficiency Reporting Value): As you have already learned, the MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.
MPR (Micro-Particle Performance Rating): MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.
FPR (Filter Performance Rating): FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.
What is a MERV Rating?
MERV ratings let you know the efficiency and level of filtration that an air filter can handle under normal circumstances. The higher the MERV rating, the finer the particles are that are filtered our of the air in your home. Many air filter retailers use MERV or a similar rating to rate their air filters.

About MERV, MPR and FPR Rating

MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.

MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.

FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.
20x23x1 Air Filters FAQs
A 20x23x1 air filter removes harmful particles from the air and works as a protective barrier to keep them from circulating in your indoor airspace. Using this type of air filter is important because it makes your home more comfortable, and healthier while protecting your HVAC unit from needing costly repairs or replacement.Â
How often you need to replace your 20x23x1 air filter depends on your home environment and how frequently you use your HVAC system. When you’re going to replace it, consider the size of your current air filter, the current or desired MERV rating, and any respiratory health issues of you or your family. Generally, a 20x23x1 air filter should be replaced every 30 to 90 days. It’s wise to check it regularly and change it if it's discolored or dirty because it will prevent your HVAC system from damage.Â
20x23x1 air filters have different MERV ratings including 8, 11, or 13 providing different benefits for trapping particles and improving the air in your living space. MERV 8 filters capture larger particles for basic filtration. You’ll get more filtration from a MERV 11 filter, especially if you have someone in your family suffering from respiratory issues or you have pets in the home. Using a 20x23x1 air filter with a MERV 13 rating will effectively reduce fine dust, bacteria, and smoke as well as pollen, dust, and mold spores in your airspace. Selecting the air filter that meets your needs and is compatible with your HVAC system can ensure you and your family have healthy, breathable air.
A 20x23x1 air filter impacts energy efficiency in an HVAC unit because the filter helps air circulate more efficiently. Using a clean filter can reduce the strain on your system.Â
Consider the amount of filtration your home needs when you’re choosing an air filter. Select a 20x23x1 air conditioner filter that will fit in your HVAC system and function correctly. Another consideration is whether you or your family have allergies or pets. You might need a higher MERV rating to circulate healthier air and eliminate harmful irritants.Â
Using an air filter with a 13 MERV rating can trap microscopic allergens such as pollen, mold spores, dust, and pet dander. A filter with a MERV 13 rating can capture 98% of airborne particles circulating in your air. Pleated air filters have a larger surface area for superior filtration. Replace your air filter every 30 to 90 days to make your indoor air cleaner and healthier, creating an allergen barrier. To complement the protection your air filter provides, try lowering the humidity levels and thoroughly clean your home regularly.Â
If you don’t replace your dirty 20x23x1 air filter, it can lead to problematic HVAC system issues. The blower and coils can become clogged with dust and debris disrupting your airflow. Then your system will try to work harder because of the clogs which can cause it to malfunction, resulting in repairs or incurring expensive replacement costs. The air circulating in your home could have negative effects on your family’s health if you don’t regularly replace it. Ensure you change your air filter so your AC unit performs at its highest level to provide clean, healthy air.Â
To install a 20x23x1 AC filter, disconnect the power source on your HVAC system. Look for the air handler and the air duct return to find the slot where the air filter is located. Clean the area where the air filter is placed to remove any dirt or debris. Prior to removing the old filter, look at the direction the arrows point in. The new filter arrows should point the same way as the old ones do, when you slide it in. Reactivate the power and make sure your HVAC unit is working correctly.Â
When you’re trying to make a decision whether to use a reusable 20x23x1 filter or a disposable one, consider the benefits each provides. Reusable filters are often less expensive than disposables and they’re better for the environment because they can be cleaned. Disposable filters can’t be cleaned. Once they are dirty, you just replace them. You can purchase a disposable filter with a higher MERV rating to deliver a higher level of filtration and cleaner air. Consider these benefits when picking whether to use a reusable or disposable filter and ensure it's compatible with your HVAC system.