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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.


Air Filters full product list:


3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1
(Filtrete-Odor-18241)

The 3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1 effectively removes common odors in your home while also trapping airborne contaminants. This odor filter is constructed with activated carbon to remove odors like pet, smoke, cooking, mildew, a


In stock! Ships in 1 business day.
3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1
Our Price: $29.99
Retail: $39.99
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Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4
(X8346)

The Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4 is the correct upgrade for the following whole-house purification system: Lennox PureAir PCO 12C.

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Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4
Our Price: $152.95
Retail: $215.00
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GeneralAire 401-13156 MERV 11 Filter Media
(4051)

The GeneralAire Merv 11 ventilator filter replacement is designed for use in GeneralAire Air Cleaners. This part is often called a GeneralAire 401-13156. A suitable AC24 filter replacement, this Merv 11 replacement filter is expandable.


Special Order. Ships in 9 days.
GeneralAire 401-13156 MERV 11 Filter Media
Our Price: $52.85
Retail: $69.99
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Honeywell TRN2427T1 Replacement for Trane BAYFTFR24M, 24x27x5 Perfect Fit Filter - 3-Pack
(TRN2427T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

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In Stock! Ships in 24 to 25 business days.
Honeywell TRN2427T1 Replacement for Trane BAYFTFR24M, 24x27x5 Perfect Fit Filter - 3-Pack
Our Price: $150.00
Retail: $179.99
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Replacement Filter for LG ADQ73214402
(EFF-9001A)

The EcoAqua Air Filter EAF-9001A is a replacement refrigerator air filter that replaces LG model ADQ73214402 and ADQ73214404. This air filter is designed to clean the air of impurities and odors.


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Replacement Filter for LG ADQ73214402
Our Price: $8.99
Retail: $14.99
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Lennox X8303 MERV 10 Expandable Filter Kit
(X8303)

The Lennox X8303 MERV 10 Expandable Filter Kit is the correct replacement for several models of the following brands of air cleaners: Bryant & Carrier Honeywell Lennox Trion This Lennox Healthy Climate filter kit contains one filter and


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Lennox X8303 MERV 10 Expandable Filter Kit
Our Price: $49.50
Retail: $49.99
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Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet
(X6661)

The Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet is a replacement filter cabinet for Lennox Healthy Climate air cleaner models HC10 and HC 16. This air filter cabinet measures approximately 20x25x5 and is also known as the HCC20-28.

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Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet
Our Price: $89.95
Retail: $120.95
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Honeywell FC100A1029 Replacement for Honeywell FC35A1001 - 16x25x5
(FC35A1001)

The Honeywell FC35A1001 is the correct replacement filter for the following air cleaners: Honeywell 16x25 F100 Media Air Cleaners Honeywell 16x25 F200 Media Air Cleaners The Honeywell FC35A1001 Replacement Air Filter 16x25x5 is a genuine Hone


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Honeywell FC100A1029 Replacement for Honeywell FC35A1001 - 16x25x5
As Low As: $36.00
Retail: $37.00
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Carrier 356066-1202 Charcoal Filter for EACBAXCC00 2-Pack
(356066-1202)

The Carrier 356066-1202 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0014 Electronic Air Cleaner.


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Carrier 356066-1202 Charcoal Filter for EACBAXCC00
Our Price: $127.24

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Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 2-Pack
(BAYFTFR24M2A)

The Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 fits the TFM245B0FR0 Perfect Fit High Efficiency Air Cleaner and easily slides in for quick use. This Trane Perfect Fit filter measures approximately 24.5" x 27" x 5" and has a MERV 8 rating for


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Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $103.46

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Duracraft 5010 Replacement for Honeywell 10590 HEPA Filter
(Honeywell 10590 R)

The Honeywell 10590 HEPA Filter Replacement is a replacement air filter for use with several Honeywell and Duracraft air cleaner models. This HEPA filter measures approximately 10 7/8" OD x 6 1/4" ID x 4" H and removes up to 99.97% of airborne parti


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Duracraft 5010 Replacement for Honeywell 10590 HEPA Filter
Our Price: $30.99
Retail: $59.99
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Lennox Y2920 Whole House Air Filter Cabinet - Genuine Lennox Part
(Y2920)

The Lennox Y2920 Whole House Air Filter Cabinet is the correct system that is: Compatible with any HVAC system and does not require an additional power source

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Lennox Y2920 Whole House Air Filter Cabinet - Genuine Lennox Part
Our Price: $94.95
Retail: $119.00
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Lennox X4137 HEPA-20 92017-11 Carbon PreFilter Replacement
(X4137)

The Lennox X4137 HEPA 20 Carbon PreFilter Replacement is a replacement carbon pre-filter for the Lennox Healthy Climate HEPA 20 Filtration System. This carbon pre-filter is the first stage of the HEPA 20 filtration process.


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Lennox X4137 HEPA-20 92017-11 Carbon PreFilter Replacement
Our Price: $34.95
Retail: $46.95
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BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
(HRF-B2 1 R)

The Honeywell HRF-B2 Carbon PreFilter 2-Pack is the correct replacement for the following models of Honeywell air purifiers: HHT-090 HHT-011 HHT-145 HPA-150 HPA-050 This carbon prefilter removes mold spores, pet dander, tobacco smoke, and


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BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
Our Price: $17.99
Retail: $19.99
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Aprilaire 4270 Pleat Spacers for 2400/5000 6-Pack
(Aprilaire 4270)

The Aprilaire 4270 Pleat Spacers for 2400/5000 fit the Aprilaire 2400 and Aprilaire 5000 air cleaner models. This pleat spacer is shaped like a comb and supports filter media for even support of particulates throughout the filter. With these genuine


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Aprilaire 4270 Pleat Spacers for 2400/5000
Our Price: $85.98

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Skuttle 000-0448-004, 16x20x5 Air Cleaner Filter 3-Pack
(000-0448-004)

The Skuttle 000-0448-004 Air Cleaner Filter can be used on air cleaners requiring 16"x20"x5" filters. The Skuttle 448-4 dramatically removes airborne particulates such as pollen, mold spores, dust, dust mites and allergens from your indoor air.


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Skuttle 000-0448-004, 16x20x5 Air Cleaner Filter
Our Price: $96.00

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GeneralAire F1021, 4572 MERV 13 16x25x4 Media Filter
(4572)

The General Aire F1021 MERV 13 16x25x4 Media Filter is the correct replacement filter for the GeneralAir TERSus1200, and removes airborne particles and allergens as small as 0.3 micron to improve indoor the air quality of your home dramatically.


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GeneralAire F1021, 4572 MERV 13 16x25x4 Media Filter
Our Price: $53.74
Retail: $59.99
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Carrier FILCCCAR0020 Air Purifier Filter 2-Pack
(FILCCCAR0020)

The Carrier FILCCCAR0020 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 fits numerous units including model numbers FIL


Special Order. Ships in 13 days.
Carrier FILCCCAR0020 Air Purifier Filter 2-Pack
Our Price: $57.95
Retail: $79.99
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American Metal Filter RCP0907 Replacement Range Hood Filter
(RCP0907)

The GE WB2X8293 Compatible Range Hood Filter measures 9" x 10 1/2" x 3/8" (measure your old filter to ensure a perfect fit). This carbon range hood filter is a compatible replacement for the GE WB2X8293 and is not washable. This charcoal filter opti


In Stock! Ships in 11 to 12 business days.
American Metal Filter RCP0907 Replacement Range Hood Filter
Our Price: $7.09
Retail: $9.99
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Filtrete Home Odor Air Filter - 16 x 20 x 1 4-Pack
(Filtrete-Odor-16201)

The Filtrete Home Odor Air Filter - 16 x 20 x 1 is constructed with activated carbon to remove common odors from your home, including pet, smoke, cooking, mildew, and cleaning chemicals. In addition to creating a more breathable atmosphere, this car


Out of stock
Filtrete Home Odor Air Filter - 16 x 20 x 1
Our Price: $86.44

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FiltersFast 14ALL Replacement For Bionaire A0802C Air Purifier Carbon PreFilter
(Bionaire A0802C R)

The Bionaire A0802C Air Purifier Carbon PreFilter is for use in your Bionaire SH0840 Air Purifier. This prefilter has dimensions of 9.6" x 9.3" x 0.2" inches.The Bionaire A0802C will trap chemical substances and odors found in your air.


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FiltersFast 14ALL Replacement For Bionaire A0802C Air Purifier Carbon PreFilter
As Low As: $9.95
Retail: $19.99
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FiltersFast 14ALL Replacement For Bionaire A1260C Air Purifier Carbon PreFilter
(Bionaire A1260C R)

The Bionaire A1260C Air Purifier Carbon PreFilter is a carbon pre-filter for several models of air cleaners and air purifiers. The Bionaire A1260C pre-filter measures approximately 11.2" x 6.6" x 1.8" and the activated carbon filter helps remove odo


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FiltersFast 14ALL Replacement For Bionaire A1260C Air Purifier Carbon PreFilter
As Low As: $9.95
Retail: $19.99
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Lennox 92X08 HEPA 40/60 Foam PreFilter Genuine Lennox Part
(92X08)

The Lennox 92X08 HEPA 40/60 Foam PreFilter is a replacement foam pre-filter for the HEPA 40 and HEPA 60 Lennox Healthy Climate Indoor Air Quality HEPA systems. Contaminated air passes through this carbon pre-filter, allowing it trap large dirt.


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Lennox 92X08 HEPA 40/60 Foam PreFilter Genuine Lennox Part
Our Price: $44.95
Retail: $69.99
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Trion 455600-001 Duct Mount HE Plus 2000
(455600-001)

The Trion Duct Mount HE Plus 2000, 455600-001 is an Electronic Whole House Air Purification System. The HE Plus 2000 includes an elctronic air flow sensor. This is a genuine Trion product. Learn how the HE Plus 2000 can help you...

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In Stock! Ships in 19 to 20 business days.
Trion 455600-001 Duct Mount HE Plus 2000
Our Price: $430.00
Retail: $520.00
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Trion Air Bear 447380-510 Right Angle Air Cleaner Merv 11
(447380-510)

The 447380-510 is the correct air cleaner that uses: 5" thick electrostatically charged pleated filter media.

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In Stock! Ships in 15 to 16 business days.
Trion Air Bear 447380-510 Right Angle Air Cleaner Merv 11
Our Price: $131.99
Retail: $149.99
You Save 12%!

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