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Air Filter Shield

While many people worry about outdoor air quality, statistics show that they actually should be more concerned about indoor air quality (IAQ). IAQ is the measure of harmful pollutants discovered within or around your home. The EPA ranks IAQ as one of the top five public health risks.

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Air Filter FAQ

Can I use the same air filter for both heat and AC?

Yes, both AC filters and furnace filters are the same thing. We categorize filters based on their intended use to make filter shopping easier for the customer. During the summer months you are more likely to search for AC filters. While during colder winter months you are looking to buy furnace filters. A good tip for remembering when to change your filters is to replace them at the start of each new season.

Which direction does the air filter go?

Always point the arrow on the box in the direction of airflow. If you are unsure the direction of airflow turn on the system fan. Do not remove the old filter before checking airflow as this might allow dirt or debris to escape.

What is air filter MERV rating?

The Minimum Efficiency Reporting Value (MERV) is used by manufacturers to explain how efficent the air filter is at trapping airborne particles. A higher MERV rating means cleaner air but reduced air flow. MERV 8 filters capture 80% of airborn particles like pollen, dust mites, mold spores, and pet dander down to 3 microns in size. MERV 11 air filters capture up to 95% of the above mentioned airborne particles down to 1 micron in size. If you choose a MERV 13 filter expect greatly diminished airflow but improved filtration of bacteria, tobacco smoke, and cooking oil down to 0.3 micorn in size. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

When to change the air filter in your house?

Replace your air filters every 3 months. You may need to replace your filters more frequently depending on air quality. If you are unsure about indoor air quailty check the filter monthly. If you notice the filter material is greatly discolored or noticably dirty change out the filter. Failing to replace air filters as recommened can lead to reduced system efficieny, greater energy costs, and poor air quailty.

Which air filter is best for allergies?

If you have respiratory problems caused by pollen, dust, mold, or pet dander a MERV 11 filter can help reduce the severity of aliments caused by allergies. If you are sensitive to smoke from cooking or tobacco a MERV 13 filter is recommend. For many allergy sufferers it is recommend you install filters to process both supply and return air. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

Which air filter is best for my home?

Your choice in air filter should depend on needs. MERV 8 filters are perfect if you have no pets and allergies are not a serious concern. MERV 11 filters are recommend for occasional allergy sufferers and homes with pets. A MERV 13 filter should be used if allergies are a serious concern and there are tobacco smokers in the house.

Where are they made?

Filtersfast brand air filters are proudly made in America. While the manufacturing location of products can vary from company-to-company, Country of Origin laws require that most products manufactured outside of America bear labeling that tells consumers where the product is made. This label should be visable on the product itself or the packaging in which it arrived.

Are the home air filters electrostatically charged?

Yes, Filtersfast, Filtrete, Carrier, among many other air filter brands use an electrostatically charged filter media. Fiberglass air filters are far less common today and were never designed to improve air quality, rather they protect HVAC systems from large dirt and debris.

Indoor air quality is extremely important since the majority of time is spent inside, whether at home or at work. HVAC systems help to remove unwanted, even dangerous particles from the air you breathe by filtering out the microscopic contaminates. Replacing your furnace filters on a regular basis will help your system run more effectively and efficiently.

With the mission to provide better, cleaner air, Aprilaire has been producing top quality products and indoor air quality systems for decades. Replacing your furnace filters with genuine Aprilaire replacement parts will ensure a greater return on your investment.


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Aprilaire Air Filters Furnace Filters product list


Aprilaire 213 Filter Media Replacement 2210 & 4200
(Aprilaire 213)

The Aprilaire 213 replacement collapsible air filter media is self spacing and sealing for the best possible air purification and removal of dust, pollen, and virus sized particles that can make you sick inside your home.


In stock! Ships in 1 business day.
Aprilaire 213 Filter Media Replacement 2210 & 4200
As Low As: $35.90
Retail: $79.99
You Save 55%!

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Aprilaire 401 Replacement Air Filter for 2400 Air Cleaner
(Aprilaire 401)

This genuine Spacegard Aprilaire 2400 Filter Media Replacement, also known as the Aprilaire 401 Filter, is the replacement filter used in the Spacegard Aprilaire 2400 Air Cleaner. The Aprilaire 401 Air Filter / Aprilaire 2400 Replacement Filter is a


In stock! Ships in 1 business day.
Aprilaire 401 Replacement Air Filter for 2400 Air Cleaner
As Low As: $23.89
Retail: $49.99
You Save 52%!

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Aprilaire 501 Replacement Filter For Model 5000
(Aprilaire 501)

This genuine Spacegard Aprilaire 5000 Filter Media Replacement, also known as the Aprilaire 501 Filter, is the replacement filter used in the Spacegard Aprilaire 5000 Air Cleaner. The Aprilaire 501 Air Filter / Aprilaire 5000 Replacement Filter is a


In stock! Ships in 1 business day.
Aprilaire 501 Replacement Filter For Model 5000
As Low As: $31.90
Retail: $49.99
You Save 36%!

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Aprilaire SpaceGard 2400 Air Filter -MERV 13 2PACK
(FFC162766SGMM13)

The Aprilaire SpaceGard 2400 Air Filter is a compatible filter replacement for the Aprilaire SpaceGard 2400 Air Cleaner System.


In Stock! Ships in 1 to 2 business days.
Aprilaire SpaceGard 2400 Air Filter -MERV 13 2PACK
Our Price: $79.00
Retail: $90.00
You Save 12%!

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Aprilaire SpaceGard 2200 Air Filter - MERV 13 2pk
(FFC20256SGM13)

The Aprilaire SpaceGard 2200 Air Filter is a compatible replacement filter for the genuine Aprilaire 2200 & 2250 Filter Media Replacement. It is an economical alternative that fits Aprilaire 2200 Air Cleaner and Aprilaire 2250 Air Cleaner.


In Stock! Ships in 1 to 2 business days.
Aprilaire SpaceGard 2200 Air Filter - MERV 13 2pk
Our Price: $73.00
Retail: $80.00
You Save 9%!

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Aprilaire Space Gard 2200 Comp. 20x25x6 - 2 Pack
(FFC20256SG)

The Filters Fast Compatible 20x25x6 MERV 11 Air Filter can be used as an upgrade for the Aprilaire Space Gard 2200. Upgrade your Space Gard filter today to the pre-assembled, easy to install Filters Fast Space Gard Compatible 20x25x6!


In Stock! Ships in 1 to 2 business days.
Aprilaire Space Gard 2200 Comp. 20x25x6 - 2 Pack
Our Price: $53.99
Retail: $69.99
You Save 23%!

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Aprilaire 1213 Upgrade Kit - Aprilaire 2200 & 2120
(Aprilaire 1213)

The Aprilaire 1213 is an Aprilaire Upgrade Kit that allows owners of Aprilaire 2200 and Aprilaire 2120 air cleaners to use the MERV 13 Aprilaire 213 Filter instead of their MERV 10 Aprilaire 201 Filter.


In stock! Ships in 1 business day.
Aprilaire 1213 Upgrade Kit - Aprilaire 2200 & 2120
Our Price: $53.50
Retail: $59.99
You Save 11%!

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Aprilaire SpaceGard 2200 Air Filter - MERV 8 2pk
(FFC20256SGM8)

The Aprilaire SpaceGard 2200 Air Filter is an economical alternative for the OEM Aprilaire 2200 and 2250 Air Filter Media Replacement.


In Stock! Ships in 1 to 2 business days.
Aprilaire SpaceGard 2200 Air Filter - MERV 8 2pk
Our Price: $55.99
Retail: $59.99
You Save 7%!

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Spacegard 2400 / Aprilaire 2400 Upgrade Kit
(Aprilaire 1413)

The Aprilaire 1413 is an Aprilaire Upgrade Kit that allows owners of Spacegard 2400 and Aprilaire 2400 air cleaners to use the MERV 13 Aprilaire 413 Filter instead of their MERV 10 Aprilaire 401 Filter. This improves air cleaning performance by 65 p

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Spacegard 2400 / Aprilaire 2400 Upgrade Kit
Our Price: $54.95
Retail: $64.99
You Save 15%!

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Aprilaire SpaceGard 2400 Air Filter - MERV 8 2pk
(FFC162766SGM8)

The Aprilaire SpaceGard 2400 Air Filter is an economical compatible alternative for the Aprilaire SpaceGard 2400 Air Cleaner Systems requiring a 16x27x6 media filter.


In Stock! Ships in 1 to 2 business days.
Aprilaire SpaceGard 2400 Air Filter - MERV 8 2pk
Our Price: $42.99
Retail: $50.00
You Save 14%!

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Aprilaire 104 Replacement Filter - Aprilaire 2140
(Aprilaire 104)

The Aprilaire 104 Replacement Filter is a genuine replacement media for the Aprilaire 2140 Air Cleaner.


Out of stock
Aprilaire 104 Replacement Filter - Aprilaire 2140
Our Price: $34.99
Retail: $39.99
You Save 13%!

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Filters Fast - Aprilaire Air Filters Furnace Filters

" Happy with my item, the price, and the fast delivery of my filters! " - Sam, Atlanta, GA
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