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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:


Frigidaire PAULTRA Refrigerator Air Filter
(PAULTRA)

The Frigidaire PureAir Ultra Refrigerator Air Filter is a refrigerator air filter that eliminates foul odors from your refrigerator and freezer. Keep your fridge free of food smells like onion, garlic, and fish with this long lasting air filter. Thi

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Frigidaire PAULTRA Refrigerator Air Filter
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FiltersFast Replacement for Electrolux 242047801
(242047801)

The FiltersFast FFRAF-001 is the correct compatible replacement for the Electrolux 242047801.

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FiltersFast Replacement for Electrolux 242047801
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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
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Holmes HWF62 Humidifier Filter - HM1280, HM1700
(HWF62)

Holmes HWF62 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HLS1300, HLS1400, HM1230, HM1280, HM1285, HM1295, HM1295, HM1296, HM1700, HM1760, HM2408, HM1275, HM1450, and HM1740.


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Holmes HWF62 Humidifier Filter - HM1280, HM1700
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FiltersFast Air Filters 2" MERV 13, 6-Pack
(FFAFM13)

Upgrade your 1" filter today with a 2-inch FiltersFast MERV 13 air filter! The highest MERV Rating on the market now available in this 2" air filter by FiltersFast. Save money on your and protect your HVAC with MERV 13 furnace filters, AC filters.

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FiltersFast Air Filters 2" MERV 13, 6-Pack
Our Price: $90.99
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FiltersFast Aprilaire SpaceGard 2200 Air Filter MERV 13
(FFC20256SGM13)

The FiltersFast Aprilaire SpaceGard 2200 Air Filter MERV 13 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


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FiltersFast Aprilaire SpaceGard 2200 Air Filter MERV 13
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FiltersFast Brand Trane 21x26x5 Perfect Fit BAYFTAH26M 2-Pack
(FFC26215TRNM8)

The FiltersFast Brand Trane 21x26x5 Perfect Fit BAYFTAH26M Air Filter is an economical compatible alternative for the genuine OEM 21x26x5 Trane Perfect Fit BAYFTAH26M Filter.


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FiltersFast Brand Trane 21x26x5 Perfect Fit BAYFTAH26M 2-Pack
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Retail: $70.00
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Carrier GAPCCCAR2025 Air Filter for GAPAAXCC2025
(GAPCCCAR2025)

The Carrier GAPCCCAR2025 Air Filter is an air purifier filter replacement for the Carrier GAPAAXCC2025 Infinity Air Purifier. It will also fit compatible units by Bryant, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air puri

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Carrier GAPCCCAR2025 Air Filter for GAPAAXCC2025
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3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11
(259112-105 3pack)

The 3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11 is a replacement filter pack for your Air Bear whole house air cleaner. These Trion Air Bear Cub filters trap common air pollutants inside of the filter, which help allow air to flow through the s


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3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11
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FiltersFast FC100A1029, FILCCCAR0016 16x25x5, 2-Pack
(FFC16255HON)

The FiltersFast, Carrier Compatible 16x25x5 MERV 11 Air Filter can be used as an upgrade for Honeywell part number FC100A1029. Upgrade your Honeywell Media Filter today and get a better filter for the same price as the manufacturer's brand!


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FiltersFast FC100A1029, FILCCCAR0016 16x25x5, 2-Pack
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FiltersFast A35PR Replacement for Carrier P1103545
(Carrier P1103545 1R)

The Carrier P1103545 Metal Water Panel Filter measures 10" x 13-1/4" x 1-1/2" (approx), and is the correct replacement evaporator pad for a variety of humidifiers manufactured by Bryant, Carrier, Honeywell, Lennox and Totaline.


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FiltersFast A35PR Replacement for Carrier P1103545
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Honeywell HC-888 Replacement Humidifier Filter
(HC-888)

The Honeywell HC-888 Humidifier Filter Replacement is a genuine Honeywell filter. This HC888 humidifier filter reduces waterborne contaminants and minerals in your water.


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Honeywell HC-888 Replacement Humidifier Filter
Our Price: $12.99
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FiltersFast Brand Honeywell FC100A1011 20x20x5, 2-Pack
(FFC20205HON)

The FiltersFast Brand Honeywell Compatible MERV 11 Air Filter can be used as an upgrade for Honeywell part number FC100A1011. Upgrade your Honeywell Media Filter today and get a better filter for the same price as the original manufacturer's brand!


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FiltersFast Brand Honeywell FC100A1011 20x20x5, 2-Pack
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FiltersFast Brand 16x25x5 Honeywell FC100A1029 2-Pack
(FFC16255HONM8)

The FiltersFast Brand 16x25x5 Honeywell FC100A1029 2-Pack is a compatible version of the OEM Honeywell 16x25x5 FC100A1029 Air Filter. This filter is supported by a 30 gauge galvanized expanded metal grid.


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FiltersFast Brand 16x25x5 Honeywell FC100A1029 2-Pack
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FiltersFast Replacement For Aprilaire Space Gard 2200 20x25x6
(FFC20256SG)

The FiltersFast FFC20256SG is the correct replacement for the Aprilaire Space Gard 20x25x6.


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FiltersFast Replacement For Aprilaire Space Gard 2200 20x25x6
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FiltersFast A35PR Replacement for Trane BAYPAD02A1310A
(T BAYPAD02A1310A 1R)

The FiltersFast Metal Humidifier Pad - Trane BAYPAD02A1310A is the correct compatible replacement for the following models of furnace humidifiers: Trane THUMD300ABA00B Trane THUMD500APA00 This metal Trane humidifier water panel filter has ap


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FiltersFast A35PR Replacement for Trane BAYPAD02A1310A
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Trion Air Bear Supreme 2000 Filter 20x25x5
(259112-102)

The Trion Air Bear Supreme 2000 Filter 20x25x5 is a whole house air filter with a MERV 11 rating that captures 90% of particles that are between 3 to 10 microns in size. This air bear filter boasts efficient synthetic material that contains extended


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Trion Air Bear Supreme 2000 Filter 20x25x5
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Filtrete Micro Allergen Home Air Filter 6-Pack Red
(Red 6-Pack)

The Filtrete Micro Allergen Air Filter blows away the competition when it comes to performance and filtration. The Filtrete "Red" Series Filter features 3M patented, electrostatically charged fibers which attract and retain microscopic particles & .

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Filtrete Micro Allergen Home Air Filter 6-Pack Red
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FiltersFast FFFAPF03 Replacement for 3M Filtrete FAPF03
(FFFAPF03)

The FiltersFast Filtrete FAPF03 Compatible Air Filter is a compatible filter to 3M Filtrete FAPF03 Air Filter, and as such is a replacement filter for Filtrete's Ultra Clean Air Purifier model FAP03-RS.


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FiltersFast FFFAPF03 Replacement for 3M Filtrete FAPF03
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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
(A10PR R)

The FiltersFast A10PR R is the correct replacement filter for Aprilaire Humidifier Models 110, 220, 500, 550, 558.


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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
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Carrier GAPCCCAR2020 Air Purifier Filter
(GAPCCCAR2020)

The Carrier GAPCCCAR2020 Air 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, Day and Night Infinity, an

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Carrier GAPCCCAR2020 Air Purifier Filter
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3M Filtrete Elite Allergen Home Air Filter 2200
(Elite Allergen)

The 3M Filtrete Elite Allergen Air Filter provides the most advanced, high performance home air filter available today. Also known as the 2200 filter, this filter is 94% effective at capturing large airborne contaminants such as mold spores.


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3M Filtrete Elite Allergen Home Air Filter 2200
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Honeywell PopUp Collapsable Air Filter - MERV 11
(Honeywell PopUp)

The Honeywell PopUp replacement air filter media is available in several sizes and features a MERV 11 rating. Installers and homeowners can save space and money. Filter is compatible with Aprilaire cabinets.


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Honeywell PopUp Collapsable Air Filter - MERV 11
Our Price: $37.00
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Lennox X0585 MERV 11 Pleated Media Filter
(X0585)

This Lennox Lennox X0585 MERV 10 Pleated Media Filter offers a pleated a design for more efficient and effective filtration.


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Lennox X0585 MERV 11 Pleated Media Filter
Our Price: $35.99
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Honeywell FC100A1003 16x20x5 Pleated Air Filter
(FC100A1003)

The Honeywell FC100A1003 16"x20" Media AC Filter can be used with Honeywell 16 x 20 Air Cleaners including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and others. Genuine Honeywell Part.


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Honeywell FC100A1003 16x20x5 Pleated Air Filter
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Retail: $49.99
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Filters Fast - Air Filters

" I just received my filters - thank you for the excellent work that you guys do! I'm a very happy customer. " - Mike, San Marcos, TX
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