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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.


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Air Filters product list


Lennox X0444 MERV 11 Pleated Furnace Filter Media
(X0444)

The Lennox X0444 MERV 10 Pleated Furnace Filter Media is a filter for your HVAC system. This furnace filter media is known as the x0444 and uses a MERV 10 air filter.The MERV 10 rating will provide your home with significant air cleaning capability


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Lennox X0444 MERV 11 Pleated Furnace Filter Media
Our Price: $28.95
Retail: $39.99
You Save 28%!

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Trion Air Bear Comp Filter M13 20x25x5 2-Pack
(FFC20255TABM13)

The Trion 20x25x5 Air Bear Furnace Filter is a compatible version of the genuine Trion Air Bear Media AC Filter 20x25x5, 255649-102.


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Trion Air Bear Comp Filter M13 20x25x5 2-Pack
Our Price: $74.99
Retail: $80.00
You Save 6%!

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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.


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Aprilaire 1213 Upgrade Kit - Aprilaire 2200 & 2120
Our Price: $53.50
Retail: $59.99
You Save 11%!

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Trane Perfect Fit BAYFTFR17M Compat. 17.5x27x5 2pk
(FFC175275TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast Air Filters specifically replace Trane part number BAYFTFR17M or FLR06069, which is a 17.5x27x5 Air Filter used in several Trane Air Cleaner.


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Trane Perfect Fit BAYFTFR17M Compat. 17.5x27x5 2pk
Our Price: $69.99
Retail: $99.99
You Save 30%!

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Lennox X6675 MERV 16 Furnace Filter Replacement
(X6675)

The Lennox X6675 is a MERV 16 filter for your home. This air filter media is also known as a healthy climate air filter and is designed to fit the Lennox HCC20-28 air cleaner model.

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In stock! Ships in 1 business day.
Lennox X6675 MERV 16 Furnace Filter Replacement
Our Price: $128.95
Retail: $149.99
You Save 14%!

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Trane Perfect Fit BAYFTFR24M 24.5x27x5 2-Pack
(FFC24265TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast Air Filters specifically replace Trane part number BAYFTFR24M, which is a 24.5x27x5 Air Filter used in several Trane Air Cleaner models.


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Trane Perfect Fit BAYFTFR24M 24.5x27x5 2-Pack
Our Price: $98.00
Retail: $111.00
You Save 12%!

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BioStrike Ceiling Fan Air Filter - BioStrike CFF
(BioStrike CFF)

The BioStrike Ceiling Fan Air Filter (BioStrike CFF) can be used with most ceiling fans to reduce dust, dirt, hair, pollen, pet dander, mold, and other airborne allergens. It attaches to the ceiling fan blade(s) to provide air filtration every time


Special Order. Ships in 29 days.
BioStrike Ceiling Fan Air Filter - BioStrike CFF
Our Price: $4.90
Retail: $4.99
You Save 2%!

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Carrier GAPCCCAR1620 Air Purifier Filter
(GAPCCCAR1620)

The Carrier GAPCCCAR1620Air Purifier Filter is a genuine OEM factory replacement air filter for the Carrier Infinity Air Purifier, Bryant Perfect Air Purifier, as well as other compatible air purifiers made by BDP, Payne, and Totaline (models GAPAA


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Carrier GAPCCCAR1620 Air Purifier Filter
Our Price: $84.24
Retail: $84.99
You Save 1%!

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Whirlpool 1183054 HEPA Filter
(1183054)

The Whirlpool 1183054 replacement HEPA filter filter removes airborne contaminants known known to cause or worsen respiratory problems. The synthetic-based filter membrane captures microscopic air particles such as dust, pollen, and smoke.


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Whirlpool 1183054 HEPA Filter
As Low As: $94.99
Retail: $149.99
You Save 37%!

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Lennox X8790 MERV 16 Air Filter Replacement
(X8790)

The Lennox X8790 MERV 16 Air Filter Replacement is a replacement air filter for the Lennox PCO14-23 PureAir Air Filtration System. This furnace filter measures approximately 20" x 21" x 5" and features a MERV 16 rating. A higher MERV rating results


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Lennox X8790 MERV 16 Air Filter Replacement
Our Price: $96.00
Retail: $229.00
You Save 58%!

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Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
(EXPXXFIL0024)

The Carrier EXPXXFIL0024 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Carrier, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It will fit many compatible air purifiers includin


In stock! Ships in 1 business day.
Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
Our Price: $40.95
Retail: $99.99
You Save 59%!

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Trane Perfect Fit BAYFTFR17P4A Filter-17.5x27x1
(BAYFTFR17P4A)

The Trane Perfect Fit BAYFTFR17P4A Filter - 17.5x27x1 fits several air cleaner models manufactured by Trane. This Trane Perfect Fit filter is 1 inch and pleated for maximum purification of your air. This Trane furnace filter measures approximately 1


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR17P4A Filter-17.5x27x1
Our Price: $16.52
Retail: $19.99
You Save 17%!

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Lennox X1152 MERV 11 Pleated Media Furnace Filter
(X1152)

The Lennox X1152 MERV 10 Pleated Media Furnace Filter is the replacement filter cartridge for several Lennox, Trion Air Bear, other air cleaner systems requiring 20x25x5 furnace filters.


In Stock! Ships in 3 to 4 business days.
Lennox X1152 MERV 11 Pleated Media Furnace Filter
Our Price: $27.35
Retail: $29.75
You Save 8%!

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FAPF02 Air Filter, Replacement for FAP02-RS
(FAPF02)

The Filtrete FAPF02 Air Filter is the replacement air cleaning filter for the Filtrete Ultra Clean Air Purifier FAP02-RS, FAP02. This electrostatically charged filter attracts & retains microparticles that can aggravate allergies and ...


In stock! Ships in 1 business day.
FAPF02 Air Filter, Replacement for FAP02-RS
Our Price: $24.14
Retail: $29.99
You Save 20%!

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Filtrete Dust & Pollen Furnace Filter (Light Blue)
(Dust and Pollen)

The Filtrete Dust & Pollen Furnace Filter is the right choice if you're looking for an economical upgrade from cheap 1 month furnace filters. The Filtrete "Blue Filter" features electrostatically charged fibers and is ideal for high-velocity..


Out of stock
Filtrete Dust & Pollen Furnace Filter (Light Blue)
Our Price: $12.99
Retail: $14.99
You Save 13%!

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Carrier EXPXXFIL0016 EZ-FLEX Air Purifier Filter
(EXPXXFIL0016)

The Carrier EXPXXFIL0016 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Carrier, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It will fit many compatible air purifiers includin


In stock! Ships in 1 business day.
Carrier EXPXXFIL0016 EZ-FLEX Air Purifier Filter
Our Price: $51.98
Retail: $69.99
You Save 26%!

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Filters Fast Trion Compatible 16x25x5, 2-pack
(FFC16255TAB)

The Filters Fast Compatible 16x25x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-105. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


In Stock! Ships in 1 to 2 business days.
Filters Fast Trion Compatible 16x25x5, 2-pack
Our Price: $55.00
Retail: $83.00
You Save 34%!

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Trion Air Bear Supreme Filter 20x20x5 MERV11 4-PacK
(259112-103 4pack)

The 259112-103 is the correct filter replacement for the following Trion Air Bear and Air Bear Supreme air cleaning systems.


In stock! Ships in 1 business day.
Trion Air Bear Supreme Filter 20x20x5 MERV11 4-PacK
Our Price: $109.99
Retail: $189.99
You Save 42%!

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Electrolux EAF1CB PureAdvantage Air Filter
(EAF1CB)

The Electrolux Pure Advantage Refrigerator Air Filter Cartridge fits Icon refrigetator models manufactured by Electrolux and Frigidaire. Reduces odors from foods such as onions, garlic, fish, stale milk, and over-ripe fruits.


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Electrolux EAF1CB PureAdvantage Air Filter
Our Price: $11.99
Retail: $14.99
You Save 20%!

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Lennox X0584 MERV 11 Pleated Media Filter
(X0584)

The Lennox X0584 MERV 10 Pleated Media Filter is a pleated air filter that replaces the filter media in the Lennox BMAC-14CE box media air cleaner and also fits inside Lennox the EAC012 and EAC0-14 model air cleaner cabinets in place of its electron


In stock! Ships in 1 business day.
Lennox X0584 MERV 11 Pleated Media Filter
Our Price: $27.00
Retail: $81.70
You Save 67%!

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Trane Perfect Fit BAYFTFR21M2A Filter-21x27x5
(BAYFTFR21M2A)

The Trane Perfect Fit BAYFTFR21M2A Filter Kit- 21x27x5 features a MERV 8 rating for the reduction of dust, dirt, and various allergens in your air, and the improvement of indoor air quality. This Trane air filter measures approximately 21" x 27" x 5


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR21M2A Filter-21x27x5
Our Price: $45.39
Retail: $49.99
You Save 9%!

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Trane 21x26x5 Perfect Fit Filter BAYFTAH26M M13 x2
(FFC26215TRNM13)

If you are looking for an economical compatible version of the genuine Trane/American Standard BAYFTAH26M Perfect Fit Air Filter, try this Trane 21x26x5 Perfect Fit Filter BAYFTAH26M with a MERV 13 energy efficiency rating.

Free shipping within the continental United States!

In Stock! Ships in 1 to 2 business days.
Trane 21x26x5 Perfect Fit Filter BAYFTAH26M M13 x2
Our Price: $110.00
Retail: $140.00
You Save 21%!

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Lennox X8311 MERV 10 Expandable Filter Replacement
(X8311)

The Lennox X8311 is the correct filter for the following air cleaner: Lennox Healthy Climate HCXF14 Air Filtration System


In Stock! Ships in 3 to 4 business days.
Lennox X8311 MERV 10 Expandable Filter Replacement
Our Price: $32.39
Retail: $38.71
You Save 16%!

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GeneralAire G99 Ventilator Filter Gage
(4002)

The GeneralAire G99 is the correct replacement for the following Ventilators: GeneralAire Whole House Ventilato


Special Order. Ships in 5 days.
GeneralAire G99 Ventilator Filter Gage
Our Price: $12.62
Retail: $49.99
You Save 75%!

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Filters Fast Trion Compatible 20x20x5, 2-pack
(FFC20205TAB)

The Filters Fast Compatible 20x20x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-103. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


In Stock! Ships in 2 to 3 business days.
Filters Fast Trion Compatible 20x20x5, 2-pack
Our Price: $48.80
Retail: $49.80
You Save 2%!

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