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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:


Honeywell TRN1727T1 Replacement for Trane BAYFTFR17M, 17.5x27x5 Perfect Fit - 3-Pack
(TRN1727T1)

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

Free shipping within the continental United States!

In Stock! Ships in 6 to 7 business days.
Honeywell TRN1727T1 Replacement for Trane BAYFTFR17M, 17.5x27x5 Perfect Fit - 3-Pack
Our Price: $144.00
Retail: $149.99
You Save 4%!

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3M Filtrete Dust Reduction Filter - Filtrete 300 6-Pack
(Filtrete 300)

The Filtrete 300 Dust Reduction Filter is a replacement non-electrostatic pleated filter that attracts and captures household dust


In stock! Ships in 1 business day.
3M Filtrete Dust Reduction Filter - Filtrete 300
Our Price: $42.90

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BestAir A35PR Replacement for SPACE-GARD 35
(SPACE-GARD 35 1R)

This BestAir A35PR humidifier water panel has approximate dimensions of 10" x 13 1/4" x 1 1/2". This metal water panel features honeycomb filtration that traps mineral pollutants.


In stock! Ships in 1 business day.
BestAir A35PR Replacement for SPACE-GARD 35
As Low As: $7.95
Retail: $9.99
You Save 20%!

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Honeywell FC40R1110 Return Grille Air Filter 14X20x3
(FC40R1110)

The Honeywell FC40R1110 is a return air grille filter that fits the following: Any return air grille that uses a 14 inch x 20 inch x 4 inch filter The Honeywell FC40R1110 Furnace Air Filter - 14X20 has a Minimum Efficiency Reporting Value (MER


In Stock! Ships in 2 to 3 business days.
Honeywell FC40R1110 Return Grille Air Filter 14X20x3
Our Price: $62.95
Retail: $139.98
You Save 55%!

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Hamilton EP-036 Humidifier Evaporator Pad
(EP-036)

The Hamilton EP-036 is the correct replacement for the following humdifier: Hamilton 10F flow through humidifier The Hamilton Humidifier Evaporator Pad EP-036 is the part of the humidifier that collects moisture and then distributes it into th


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Hamilton EP-036 Humidifier Evaporator Pad
Our Price: $14.99
Retail: $19.99
You Save 25%!

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BestAir D11-C Replacement for Honeywell HC-811 Humidifier Filter
(Honeywell HC-811 R)

The BestAir D11-C humidifier wick filter will remove minerals and pollutants from the water, preventing them from being released into your homes air.


In stock! Ships in 1 business day.
BestAir D11-C Replacement for Honeywell HC-811 Humidifier Filter
Our Price: $7.99
Retail: $9.99
You Save 20%!

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FiltersFast ACA-1010 R Replacement for Duracraft ACA-1010 Air Cleaner Filter
(ACA-1010 R)

The Duracraft ACA-1010 Air Cleaner Filter Replacement is a HEPA filter which is 99.97% effective at removing dust, dirt, pollen, fibers, pet hair and dander, mold and spores as small as 0.3 microns.


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FiltersFast ACA-1010 R Replacement for Duracraft ACA-1010 Air Cleaner Filter
Our Price: $20.99
Retail: $24.39
You Save 14%!

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Aprilaire 5153 EZ Kleen Filter Replacement - 2-Pack 2-Pack
(5153)

The Aprilaire 5153 fits the following model ventilator: 8100 Energy Recovery Ventilator Aprilaire EZ Kleen Filter Replacement 2-Pack is a washable replacement filter.


Special Order. Ships in 10 days.
Aprilaire 5153 EZ Kleen Filter Replacement - 2-Pack
Our Price: $43.00

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FiltersFast 2" Replacement for Geothermal 2" - MERV11, 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


In Stock! Ships in 5 to 6 business days.
FiltersFast 2" Replacement for Geothermal 2" - MERV11, 6-Pack
Our Price: $69.95
Retail: $89.99
You Save 22%!

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Honeywell FC100A1003 Replacement for Honeywell 209894 - 16x20x5
(209894 R)

The Honeywell 209894 Replacement 16x20 Air Filter is a replacement furnace air filter for use with Honeywell 16 x 20 Air Cleaners, including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and other models. This Honeywell furnace filter, a


In stock! Ships in 1 business day.
Honeywell FC100A1003 Replacement for Honeywell 209894 - 16x20x5
As Low As: $30.99
Retail: $49.99
You Save 38%!

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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.


In stock! Ships in 1 business day.
Honeywell FC40R1094 12x12x3 Return Grille Filter
As Low As: $39.50
Retail: $50.00
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FiltersFast FFC20265WR Replacement for White Rodgers F825-0549 20x26x5 2Pack
(F825-0549)

The FiltersFast Compatible 20x26x5 MERV 11 Air Filter can be used as an upgrade for White Rodgers part number F825-0549. Upgrade your White Rodgers Media Filter today and get a better filter for the same price as the original manufacturer's brand!


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FiltersFast FFC20265WR Replacement for White Rodgers F825-0549 20x26x5 2Pack
Our Price: $55.95
Retail: $79.99
You Save 30%!

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BestAir A10WPR Replacement for Carrier P1101045 Humidifier Filter
(P110-1045)

The BestAir A10WPR Humidifier Water Panel Evaporator is a compatible version of the genuine Aprilaire 500 Humidifier Water Panel Evaporator.


In stock! Ships in 1 business day.
BestAir A10WPR Replacement for Carrier P1101045 Humidifier Filter
Our Price: $15.99
Retail: $19.99
You Save 20%!

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Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
(611DCS)

The Bionaire 611DCS dual air filter cartridge is for use with your Bionaire model air purifier. This dual air purifier filter inclueds both a main and carbon filter for better air filtration. The carbon and air filter work together to remove harmful


In stock! Ships in 1 business day.
Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
Our Price: $11.99
Retail: $14.99
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Filtrete Home Odor Air Filter- 14 x 20 x 1
(Filtrete-Odor-14201)

The Filtrete Home Odor Air Filter- 14 x 20 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, and clean


In stock! Ships in 1 business day.
Filtrete Home Odor Air Filter- 14 x 20 x 1
Our Price: $21.61
Retail: $29.99
You Save 28%!

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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


Special Order. Ships in 19 days.
Filtrete One Inch Odor Air Filter - 20 x 30 x 1
Our Price: $86.44

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12488101 Refrigerator Air Filter
(12488101)

The 12488101 Refrigerator Air Filter fits some newer Amana models.


Special Order. Ships in 7 days.
12488101 Refrigerator Air Filter
Our Price: $12.99
Retail: $14.99
You Save 13%!

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FiltersFast 22500 R Replacement for Honeywell 22500
(22500)

The FiltersFast 22500 R Replacement HEPA Filter fits Honeywell 17400 Series, 62500, 12500 Series, 10000, 13500, and 13501.


Special Order. Ships in 12 days.
FiltersFast 22500 R Replacement for Honeywell 22500
Our Price: $56.99
Retail: $64.99
You Save 12%!

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BestAir D18-C Replacement for Honeywell HAC-500 Humidifier Filter
(Honeywell HAC-500 R)

The BestAir D18-C Humidifier Filter Pad features honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home.


In stock! Ships in 1 business day.
BestAir D18-C Replacement for Honeywell HAC-500 Humidifier Filter
Our Price: $6.99
Retail: $9.99
You Save 30%!

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FiltersFast FFC20255TABM8 Replacement for Trion AB20258 20x25x5 - 2-Pack
(AB20258)

The AB20258 is the correct air filter replacement used in Trion Air Bear, Air Bear Classic, Air Bear Plus 2000 and Trion Air Bear Supreme 2000 Air Cleaners.


In Stock! Ships in 5 to 6 business days.
FiltersFast FFC20255TABM8 Replacement for Trion AB20258 20x25x5 - 2-Pack
Our Price: $40.98
Retail: $50.00
You Save 18%!

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Crane HS-1934 Replacement Air Purifier Filter Set
(HS-1934)

The Crane HS-1934 replacement air purifier filter kit features an advanced four level filtration system which removes germs, viruses, and bacteria as well as many different airborne allergens such as dust, pollen, smoke, pet dander, mold spores.


In Stock! Ships in 1 to 2 business days.
Crane HS-1934 Replacement Air Purifier Filter Set
Our Price: $22.99
Retail: $24.99
You Save 8%!

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Holmes HAPF31 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF31M)

This Holmes HAPF31 Air Purifier Carbon PreFilter-2 Pack helps reduce household odors and keeps dust and large particles out of your filter. It is recommended that you replace your Holmes carbon odor filter every 2-3 months for optimum results.


In Stock! Ships in 3 to 4 business days.
Holmes HAPF31 Air Purifier Carbon PreFilter
Our Price: $9.00

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Honeywell TRN2127T1 Replacement for Trane BAYFTFR21M, 21x27x5 Perfect Fit - 3-Pack
(TRN2127T1)

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

Free shipping within the continental United States!

In Stock! Ships in 2 to 3 business days.
Honeywell TRN2127T1 Replacement for Trane BAYFTFR21M, 21x27x5 Perfect Fit - 3-Pack
Our Price: $154.50
Retail: $179.99
You Save 14%!

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FiltersFast 5" FFC175275TRN OKGM Air Filter - 2-Pack
(FFC175275TRN OKGM)

The FiltersFast 5" Trane Compatible FFC175275TRN OKGM is a compatible replacement air filter that replaces the Trane BAYFTFR17M and Trane FLR06069 air filters, both of which can be used in several models of Trane Air Cleaners. This 5" filter boasts


In Stock! Ships in 1 to 2 business days.
FiltersFast 5" FFC175275TRN OKGM Air Filter - 2-Pack
Our Price: $70.99
Retail: $104.99
You Save 32%!

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FiltersFast ROHAPF220CSM Replacement for Holmes HAPF220
(ROHAPF220CSM)

The Holmes HAPF220 Purifier Carbon PreFilter-2 Pack fits the following models of Holmes air purifiers: HAP222 HAP223 HAP2234 HAP412 HAP412G HAP422B HAP422G This air purifier pre filter reduces odors such as pet odors, musty odors, cookin


In Stock! Ships in 3 to 4 business days.
FiltersFast ROHAPF220CSM Replacement for Holmes HAPF220
Our Price: $9.95
Retail: $14.99
You Save 34%!

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Filters Fast - Air Filters

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