MERV 11 Air Filters

MERV 11 Air Filters | MERV 11 Furnace Filters | Custom Filters Direct


MERV 11 air filters capture particles of up to 0.3 microns. They're perfect for residential and commercial use.

Enhance your indoor air quality with the advanced filtration that comes with MERV 11 air filters. These exceptional pleated filters can capture a wide range of pollutants, including pet dander, lint, dust, pollen, debris, mold spores, smoke, and smog, effectively improving indoor air quality.

MERV 11 filters provide healthier air than ordinary fiberglass filters as they work more effectively and have an extended lifespan. With an impressive capture rate of airborne particles as small as 1 micron, our MERV 11 filters are the go-to choice for both residential and commercial applications. Designed to provide long-lasting performance, these filters offer reliable air purification for a longer time, ensuring a healthier and more comfortable living or working environment.

Change your filters regularly to ensure the efficient working of your HVAC system and breathe in clean air always. MERV 11 filters offer a perfect balance of air filtration and performance.

Curious About MERV 11 Filters?

MERV stands for Minimum Efficiency Reporting Value, which is a rating system used to measure the effectiveness of air filters in trapping airborne particles. MERV ratings typically range from 1 to 20, with higher numbers indicating a greater efficiency in removing particles from the air. A MERV 11 filter is considered a mid-range filter, offering relatively good filtration capabilities.

A MERV 11 filter captures a specific range of particles from the air as it passes through an HVAC system. MERV 11 filters capture particles, including dust, pollen, mold spores, pet dander, and larger airborne allergens. They are effective in improving indoor air quality by trapping these particles, thereby reducing the amount of airborne contaminants circulating in a home or building.

It's ideal for houses with pets and places where individuals experience mild to moderate allergies or asthma. If your requirement is greater than this, then you can opt for a higher level of MERV air filters; otherwise, you can move to the lower-rating air filters.

Why Choose MERV 11 Air Filters?

Great Filtration Efficiency

MERV 11 air filters can capture a diverse range of airborne particles, including pet dander, pollen, dust, mold spores, and more.

Extended Lifespan

These filters have prolonged lifespans, contributing to significant cost savings for residential as well as commercial users.

They are Highly-Versatile

MERV 11 filters are a versatile solution that meets the air quality needs of both residential and commercial buildings.

Save on Energy Costs

If you get a custom MERV 11 air filter for your system, you're likely going to save lots of cash maintaining your heating and AC unit in the long-run. That's because they snugly fit and streamline the air filtration process without straining the system


Compare MERV Ratings


Residential / Commercial

Healthy Families

Captures 90% of Airborne Particles



Residential / Commercial

Allergy Sufferers

Captures 95% of Airborne Particles



Residential / Commercial

(Hospital Grade)

Asthma and Other Respiratory Issues

Captures 98% of Airborne Particles 

Comprehensive Explanation of Minimum Efficiency Reporting Value (MERV) Ratings

MERV is an acronym for the ‘Minimum Efficiency Reporting Value' of any filter. This rating indicates the ability of the filter to catch airborne particles between 0.3 and 10 micrometers (µm) entering from the HVAC unit. This word was coined by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) and it is still used as the standard unit to rate filter systems. The rating number and ability to catch the contaminants go in ascending order, which means that the higher the rating, the higher the efficiency and capability of the filter to catch the pollutants.

The higher filter rate means that HVAC devices will work a little harder (more energy and effort will be required) as there will be an increased amount of particles that need to be blocked. Also, the efficiency of the system will decrease if you are using an air filter that is too high for your HVAC system, as it'll increase the back pressure level and airflow will be blocked.

The best MERV rating for your system should be indicated on the HVAC system or somewhere in its manual. It's recommended that residential and commercial spaces use an air filter with a MERV rating between 8 and 11. Below this range, such as 4 to 6, MERV ratings are unsuitable for residential purposes but they hold sufficient efficiency to remove airborne particles in industrial workplaces.

If we talk about 14 to 20 MERV-rating air filters, they are ideal options for hospitals, pharmaceutical manufacturing units, and laboratory applications where much cleaner air is required. You can go with the option of MERV 11 furnace filters if you are looking for a balanced option between indoor air quality and HVAC unit efficiency.

Lastly, the most efficient option that can catch particles with 99.97% efficiency is the HEPA (High-Efficiency Particulate Air) filter. They're not MERV rated but they can fall under the range of 17 to 20 based on the level of air filtration they provide.


What Particles Get Blocked by the MERV 11 Filter?

MERV 11-rated filters can block 90% of airborne particles that are somewhere between 1.0 and 3.0 micrometers in size. It wonderfully traps the following elements and offers fresh and clean air:

  • Fine and large dust particles

  • Pet dander

  • Dust mites

  • Pollen

  • Cement Dust

  • Auto Emission

  • Smoke

  • Hair Spray

  • Clothing fiber

  • Lint, among other particles

    You should check out your requirements before purchasing so that you get a worthwhile addition for every dollar you pay.

Understanding the Ideal Users of MERV 11

MERV 11 filters are suitable for individuals or places that prioritize better indoor air quality. People with allergies or asthma often benefit from MERV 11 filters, as they capture finer particles like pollen, dust, and pet dander than MERV 8 and help reduce triggers for these conditions. But you can also go with MERV 13 (the top recommendation for residential purposes) for much cleaner air.

You can think about moving to MERV 13 if you are commonly dealing with-

  • Chronic Obstructive Pulmonary Disease (COPD)

  • Intense allergic condition

  • Asthma problems

  • Persistent bronchitis

  • Or another breathing-related health issue

  • Airborne Health Risk

When to Replace Your Air Filter: Signs it's Time for a Change

Air filters play an important role in maintaining clean, healthy air inside your home or office. They work efficiently to trap dust, pollen, pet dander, and other airborne particles that can affect the quality of the air. Like any other item, air filters have a lifespan. Over time, they accumulate dirt and debris, which can affect their efficacy. Knowing when to change them ensures your air stays fresh and your HVAC system operates efficiently.

Visible Dirt and Debris

If the filter appears dirty or clogged upon inspection, it's likely time for a replacement. Get it replaced for better performance.

Reduced Airflow

When you notice a decrease in the airflow coming from your vents, a clogged filter in your HVAC system might be the cause.

Increased Allergy Symptoms

If you or others in your home experience more allergy symptoms than usual, it could be due to a dirty filter.

Increased Energy Bills

A clogged filter can make your HVAC system work harder, resulting in increased energy consumption and higher utility bills.

Following a routine maintenance schedule for your HVAC system, which includes filter changes, ensures optimal performance.

Have Trouble Deciding on an Appropriate MERV Rating?

MERV measures the efficiency level of air filters and how efficiently they can trap or remove particles from the air. The range of MERV lies between 1 to 20 and with the increasing number, the level of filter also increased. In simple terms, the 20 MERV-rated filter blocks the most air pollutants while the 1-rated MERV air filter block the least. Depending on your space and your system's capacity, you choose the appropriate air filter. Research before selecting the right filter so that your HVAC device can work properly.

MERV 11 is considered a good filter rating for residential HVAC systems. These filters capture a high percentage of airborne particles, including dust, pollen, mold spores, and pet dander. However, the choice of MERV rating depends on various factors, such as the specific needs of your home, the HVAC system's compatibility, and any health considerations. If you are looking for a different MERV rating, consider our MERV 8 and MERV 13 filters.

A MERV 11 filter should generally be replaced every 2 to 3 months, depending on factors such as indoor air quality and system usage. With regular replacement, you can ensure optimal filtration efficiency and maintain a healthy indoor environment. However, it's essential to check the filter condition monthly, as factors like pet hair for pet owners, high pollen levels, or construction activities may need more frequent replacements. For more details regarding the replacement of the MERV 11 filter, connect with our air filter experts.

MERV 11 filters are suitable for many residential HVAC systems. However, before you install a new filter or upgrade to a higher MERV rating, check your specific system's requirements. Some systems have limitations on the maximum MERV rating. So, don't use an air filter with a MERV rating higher than the recommended. Otherwise, you might damage your HVAC system. Use the right rating to ensure effective filtration without straining your Heating and AC system.

MERV 11 filters are designed in such a way that they provide a perfect balance of air filtration and system performance. These air filters are perfect for residential use, and you don't have to be worried about anything after installing these air filters.

Custom Filters Direct: All About Fresh Air

Custom Filters Direct's subscription service makes replacing MERV 11 filters simple. Say goodbye to the hassle of remembering to replace your air filters every time. Just specify the exact filter size you want, pick your preferred delivery window, and let us handle the rest. Regardless of the size or shape of your filter order, we're here to assist you with the best service and product. We'll deliver your air filter made with premium products and 100% American talent.