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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:


FiltersFast 2" Geothermal Home Air Filters MERV 11 6-Pack
(FFGM11)

The 2" Geothermal Home Air Filters MERV 11 - 6 Pack is a six pack of replacement air filters utilizing geothermal technology. These air filters also feature a MERV 11 rati


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FiltersFast 2" Geothermal Home Air Filters MERV 11 6-Pack
Our Price: $67.99
Retail: $89.99
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Honeywell HC-811 Humidifier Wick Filter
(Honeywell HC-811 R)

The Honeywell HC-811 humidifier wick filter is designed to fit your Honeywell model humidifier. This humidifier wick filter will remove minerals and pollutants from the water, preventing them from being released into your homes air. The HC-811 is re


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Honeywell HC-811 Humidifier Wick Filter
Our Price: $7.99
Retail: $9.99
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Honeywell Trane Perfect Fit 21.5x21x5 BAYFTAH21M 3-Pack
(HTRN2121T1)

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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Honeywell Trane Perfect Fit 21.5x21x5 BAYFTAH21M 3-Pack
Our Price: $149.00
Retail: $150.00
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Honeywell 10590 HEPA Filter Replacement
(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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Honeywell 10590 HEPA Filter Replacement
Our Price: $30.99
Retail: $50.95
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Filtrete Deep 1500-2 Replacement 4" Air Filter 2-Pack
(Deep 1500-2)

The Filtrete Deep 1500-2 Replacement 4" Air Filter comes with greater depth for improved airflow and more effective containment reduction.


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Filtrete Deep 1500-2 Replacement 4" Air Filter
Our Price: $93.94

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Honeywell FC35A1001 Replacement Air Filter 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 FC35A1001 Replacement Air Filter 16x25x5
As Low As: $36.00
Retail: $37.00
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FiltersFast ROHAPF60M Replacement For Holmes HAPF60 2-Pack 2-Pack
(ROHAPF60M)

The Holmes HAPF60 Air Purifier Carbon PreFilter-2 Pack is a pack of replacement carbon pre-filters for several models of air cleaners from Holmes, Bionaire, and GE. This two pack of air purifier filters reduces the presence of odors within the home


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FiltersFast ROHAPF60M Replacement For Holmes HAPF60 2-Pack
Our Price: $19.90

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Lennox 92X08 HEPA 40/60 Foam PreFilter
(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
Our Price: $41.99
Retail: $69.99
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Honeywell Trane Perfect Fit Filter 24x27x5 BAYFTFR24M 3-Pack
(HTRN2427T1)

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 13 to 14 business days.
Honeywell Trane Perfect Fit Filter 24x27x5 BAYFTFR24M 3-Pack
Our Price: $150.00
Retail: $179.99
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Trion Air Bear 255649-101 Replacement For Trion Air Bear AB316258
(AB316258)

The 6-Pack Trion Air Bear Cub Filter is a replacement Trion filter that works in all of your Trion Air Bear cleaners requiring a 16x25x3 size filter. Recommended by the Green Building Council, the Trion Air Bear filters replacement is a HEPA 8 filte


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Trion Air Bear 255649-101 Replacement For Trion Air Bear AB316258
As Low As: $22.49
Retail: $35.00
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American Metal Filter Replacement For GE WB02X10776
(OEMRCP0410)

This is a Replacement Microwave Filter (OEMRCP0410) made by American Metal Filter Company which is a compatible microwave filter replacement primarily for the GE WB02X10776 filter. This microwave filter is a combination filter composed of


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American Metal Filter Replacement For GE WB02X10776
Our Price: $12.99
Retail: $14.99
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Lennox X8314 MERV 16 Expandable Filter Replacement
(X8314)

The Lennox X8314 is the correct replacement for the following air cleaner: Lennox PMAC-20C Healthy Climate Air Cleaner

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Lennox X8314 MERV 16 Expandable Filter Replacement
Our Price: $79.99
Retail: $114.99
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Filtrete One Inch Odor Air Filter - 20 x 30 x 1 4-Pack
(Filtrete-Odor-20301)

The Filtrete One Inch Odor Air Filter - 20 x 30 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


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Filtrete One Inch Odor Air Filter - 20 x 30 x 1
Our Price: $86.44

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FiltersFast Brand White Rodgers F825-0549 MERV13
(FFC20265WRM13)

The FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack is a compatible alternative that's a part of the White Rodgers F825 Series residential air cleaner replacement filters.


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FiltersFast Brand White Rodgers F825-0549 MERV13
Our Price: $80.00
Retail: $100.00
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Lennox 92X10 40/60 HEPA Filter Replacement
(92X10)

This Lennox Charcoal Carbon Filter 92X10 is designed to capture 99.97% of particulates down to 0.3 micron that pass through it. The Lennox Healthy Climate filter should be replaced every 2-5 years.

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Lennox 92X10 40/60 HEPA Filter Replacement
Our Price: $261.99
Retail: $284.96
You Save 8%!

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Lennox X8349 MERV 10 Filter Maintenance Kit
(X8349)

The Lennox X8349 MERV 10 Filter Maintenance Kit is a filter maintenance kit for the Lennox PCO-12C PureAir Air Purification System. This maintenance kit includes one MERV 10 filter (X6664), one catalyst insert (75X73), and four UV bulbs (X8149). The

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Lennox X8349 MERV 10 Filter Maintenance Kit
Our Price: $196.00
Retail: $225.25
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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
(203719)

The Honeywell 203719 Furnace Air Filter - 16x25x5 is a replacement air filter for use with the Honeywell 16X25 model F100 and F200 air cleaners. This Honeywell air filter, also known as the Honeywell FC100A1029, has a MERV 10 rating and traps 96% of


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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
As Low As: $36.00
Retail: $39.95
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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk 2-Pack
(356066-0601)

The Carrier 356066-0601 Pre Filter is a genuine OEM factory replacement pre filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
Our Price: $70.02

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GeneralAire 100328 Ventilator Filter Replacement
(4663)

The GeneralAire filter pads are for use on your GeneralAire Venitlator. This ventilator filter media will keep your unit running at its best. The 100328 filter media is a genuine OEM part from the manufacturer. These ventilator filter pads will comp


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GeneralAire 100328 Ventilator Filter Replacement
Our Price: $41.99
Retail: $49.99
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Honeywell FC40R1094 12x12x3 Return Grille Filter
(FC40R1094)

The Honeywell FC40R1094 is a high-efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x12x4. Genuine Honeywell Part.


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Honeywell FC40R1094 12x12x3 Return Grille Filter
As Low As: $39.50
Retail: $50.00
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Carrier P110-0007 Paper Water Panel Filter
(Carrier P110-0007 1R)

The Carrier P110-0007 paper water panel filter measures 9-7/16" x 10-1/16" x 1-5/8" (approx.), and is the correct filter for many humidifiers models by BDP, AprilAire, Bryant, Lennox, Autoflo, Healthy Climate, Hamilton, Carrier, Lasko and Totaline.


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Carrier P110-0007 Paper Water Panel Filter
Our Price: $15.99
Retail: $19.99
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BestAir R14ALLM Replacement For Kenmore 83125 2-Pack
(KENMORE 83125 1 R)

The Kenmore 83125 Carbon PreFilter 2-Pack is cut-to-fit activated. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


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BestAir R14ALLM Replacement For Kenmore 83125 2-Pack
Our Price: $17.99
Retail: $19.99
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FiltersFast A10PR R Replacement for Idylis A10-ID
(Idylis A10-ID R)

The FiltersFast A10PR R is the correct replacement for the Idylis A10-ID R and for the following humidifier models:


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FiltersFast A10PR R Replacement for Idylis A10-ID
As Low As: $6.99
Retail: $10.99
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FiltersFast FFMH-004 Replacement For GE WB06X10359
(FFMH-004)

The FiltersFast FFMH-004 Oven Hood Range Filter is the compatible replacement for GE WB06X10359.


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FiltersFast FFMH-004 Replacement For GE WB06X10359
Our Price: $5.95
Retail: $9.99
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GeneralAire F1018 MERV 11 16x25x4 Media Filter
(4571)

The General Aire F1018 MERV 11 16x25x4 Media Filter is the correct filter replacement for the General Air TERSus 1200, and removes airborne allergens and particles down to 0.3 microns to improve indoor air quality of your home dramatically.


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GeneralAire F1018 MERV 11 16x25x4 Media Filter
Our Price: $51.99
Retail: $59.99
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