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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 FFC16255TAB Trion Compatible 16x25x5, 2-Pack
(FFC16255TAB)

The FiltersFast 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!


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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
Our Price: $56.00
Retail: $83.00
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Lennox X8311 MERV 10 Expandable Filter Replacement for HCXF14
(X8311)

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


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Lennox X8311 MERV 10 Expandable Filter Replacement for HCXF14
Our Price: $30.95
Retail: $38.71
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Lennox Y6608 PCO3-20-16 Healthy Climate PureAir Annual Kit
(Y6608)

Lennox Y6608 PCO3-20-16 Healthy Climate PureAir Annual Maintenance Kit.

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Lennox Y6608 PCO3-20-16 Healthy Climate PureAir Annual Kit
Our Price: $148.95
Retail: $178.54
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FiltersFast ROHAPF60M Replacement For Holmes HAPF60 Pre-Filter 2-Pack 2-Pack
(HAPF60)

The Holmes HAPF60 Carbon Pre-Filter 4-Pack fits Holmes HAP615, HAP625, HAP650, HAP675, and others. In an average household 1 Pre-filter will last 3 months--order your year supply today!


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

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Lennox X8790 PCO14-23 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 PCO14-23 MERV 16 Air Filter Replacement
Our Price: $105.95
Retail: $229.00
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GeneralAire 4368 Replacement for GeneralAire 4356 - GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


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GeneralAire 4368 Replacement for GeneralAire 4356 - GA100A37
Our Price: $31.99
Retail: $39.99
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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
(FFC175275TRN M13)

These FiltersFast Brand MERV 13 Furnace Filters replace Trane Perfect Fit Air Filters with the part number BAYFTFR17M or FLR06069, which are 17.5x27x5 air filters used in several Trane Air Cleaner models.

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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
Our Price: $90.99
Retail: $116.99
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Aprilaire 1413 Air Filter Performance 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


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Aprilaire 1413 Air Filter Performance Upgrade Kit
Our Price: $55.95
Retail: $64.99
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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
(259112-101 6Pack)

The Trion Air Bear Cub Filter 16x25x3 MERV 11 6-Pack can be used Trion AirBear Air Cleaners and all air cleaners that need 16"x25"x3" air filters. These Trion filters are an economical upgrade from simple poly-pleated or fiberglass filters.

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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
Our Price: $91.99
Retail: $109.99
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Trion Air Bear Media AC Filter 20x20x5 4-Pack
(255649-103 4pack)

The Trion Air Bear Media AC Filter 20x20x5 part number 255649-103 is a genuine Trion Air Bear pleated media A/C filter. The 255649103 can be used in Trion 20" x 20" Models including model number 455604-019. Replaces 229990-103 and 248713-103.


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Trion Air Bear Media AC Filter 20x20x5 4-Pack
Our Price: $79.00
Retail: $100.00
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BestAir R14ALLM Replacement For Honeywell HRF-AP1 2-Pack
(HRF-AP1 1 R)

The Honeywell HRF-AP1 Carbon PreFilter 2-Pack is a replacement carbon pre-filter for all models of Honeywell Round Air, Honeywell Quietcare, and Honeywell SilentComfort air purifiers. This two pack of carbon filters is cut-to-fit, reduces common odo


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BestAir R14ALLM Replacement For Honeywell HRF-AP1 2-Pack
Our Price: $17.99
Retail: $19.99
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Hunter 30901 Carbon Purifier Pre-Filter
(30901)

The Hunter 30901 Carbon Pre-Filter fits all Hunter QuietFlo and HEPAtech purifiers. The 30901 Carbon Pre-Filter's activated charcoal absorbs odors from pets, smoking, cooking and more.


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Hunter 30901 Carbon Purifier Pre-Filter
As Low As: $20.50
Retail: $27.95
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Lennox X5424 PMAC-20C MERV 16 25x20x6 Furnace Filter Media
(X5424)

This Lennox X5424 MERV 16 Pleated Furnace Filter Media needs to be replaced every 12 months. The Lennox MERV 16 Filter is a genuine Lennox Healthy Climate boxed media air cleaner.

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Lennox X5424 PMAC-20C MERV 16 25x20x6 Furnace Filter Media
Our Price: $94.95
Retail: $122.45
You Save 22%!

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Carrier Bryant 49BF Humidifier Filter Replacement
(318518-761)

The Carrier Bryant 49BF Humidifier Filter Replacement is also known as Carrier Bryant 318518-761.


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Carrier Bryant 49BF Humidifier Filter Replacement
Our Price: $29.49
Retail: $34.99
You Save 16%!

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FiltersFast FFC20265WRM8 Replacement for White Rodgers 20x26x5 F825-0549 2-Pack
(FFC20265WRM8)

The FiltersFast Brand 20x26x5 Air Filter F825-0549 is a compatible alternative for the OEM White Rodgers 20x26x5 Air Filter. This filter is made of fine carbon powder bonded to lofted polyester media for odor reduction.


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FiltersFast FFC20265WRM8 Replacement for White Rodgers 20x26x5 F825-0549 2-Pack
Our Price: $41.99
Retail: $50.00
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Honeywell Enviracaire HC22A1007 Filter - HE220a
(HC22A 1007)

The Honeywell Enviracaire Elite HC22A 1007 Humidifier Pad replaces the humidifier pad in the Honeywell HE220A,B Bypass Flow-Through Humidifier or Aprilaire 550 Humidifier. Genuine Honeywell part.


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Honeywell Enviracaire HC22A1007 Filter - HE220a
Our Price: $12.99
Retail: $13.00
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Lennox X0584 MERV 11 Pleated Media Filter BMAC-14CE
(X0584)

The Lennox X0584 MERV 11 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


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Lennox X0584 MERV 11 Pleated Media Filter BMAC-14CE
As Low As: $32.95
Retail: $81.70
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BestAir CBW9 Replacement For Bionaire 900 2-Pack
(CBW9)

The 900 Humidifier Filters Two-Pack, is a humidifier wick filter that works in your Bionaire Humidifier. The humidifier filter wick works with your Bionaire humidifier to produce the best humidified air quality for your home. These Bionaire


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BestAir CBW9 Replacement For Bionaire 900 2-Pack
As Low As: $12.99
Retail: $14.99
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BestAir A35WPR Replacement For Carrier P1103545
(Carrier P1103545 R)

The Carrier P1103545 Humidifier Water Panel Filter is the correct compatible replacement for: Several models of Carrier furnace humidifiers This humidifier water panel filter measures approximately 10" x 13 1/4" x 1 1/2". This Carrier water pa


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BestAir A35WPR Replacement For Carrier P1103545
As Low As: $11.45
Retail: $14.99
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Honeywell FC40R1169 14x30 Return Grille Air Filter
(FC40R1169)

The Honeywell FC40R1169 14x30 Return Grille Air Filter is a replacement air filter that fits most return filter grilles. This return air filter grille measures 14" x 30" and features a MERV 10 rating for the reduction of airborne contaminants. The H


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Honeywell FC40R1169 14x30 Return Grille Air Filter
Our Price: $34.95
Retail: $39.99
You Save 13%!

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FiltersFast 1" Air Filters MERV 11 Replacement for Aerostar 1" MERV 11 6-Pack
(FFM11 6pk AS)

The FiltersFast 1" MERV 11 Pleated Air Filters 6-Pack is the compatible replacement for the Aerostar 1" MERV 11 Pleated Air Filters.


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FiltersFast 1" Air Filters MERV 11 Replacement for Aerostar 1" MERV 11 6-Pack
Our Price: $55.50
Retail: $77.94
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Lennox Y6606 PCO3-14-16 Air Filtration Filter PureAir 100908-12
(Y6606)

The Lennox Y6606 PCO3-14-16 PureAir 100908-12 Healthy Climate PureAir Air Purification System features a Precision Pleat MERV 16 filter that traps particles down to an amazing 0.01 micron.

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Lennox Y6606 PCO3-14-16 Air Filtration Filter PureAir 100908-12
Our Price: $90.95
Retail: $99.99
You Save 9%!

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GE WB02X10956 Compatible Microwave Filter
(OEMRCP0303)

This Microwave Filter Replacement (OEMRCP0303) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10956 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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GE WB02X10956 Compatible Microwave Filter
Our Price: $8.99
Retail: $9.99
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FiltersFast FFC20205TAB Replacement for Trion 255649-103 2-Pack
(FFC20205TAB)

The FiltersFast 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 and save!


In Stock! Ships in 2 to 3 business days.
FiltersFast FFC20205TAB Replacement for Trion 255649-103 2-Pack
Our Price: $49.80

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BestAir A35PR Replacement for Lennox WB2-17 and WB2-18 Filter
(WB2-17 WB2-18)

The BestAir A35PR is the compatible replacement filter for the Lennox WB2-17 and WB2-18 Humidifier Metal Water Panel Filter.


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BestAir A35PR Replacement for Lennox WB2-17 and WB2-18 Filter
As Low As: $7.95
Retail: $9.99
You Save 20%!

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