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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.


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Air Filters product list


General Aire 24V Transformer C5-074D
(4723)

The GeneralAire 4723 fits the following models of air cleaners: GeneralAire SSCB7-WHT GeneralAire SSCB7W-R GeneralAire SSCB15-WHT GeneralAire SSCB15W-R The General Aire 24V Transformer C5-074D is one of the air cleaner's electronic parts. T


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General Aire 24V Transformer C5-074D
Our Price: $41.99
Retail: $49.99
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GeneralAire FP2025X5 MERV 8 AC Filter Media 12-Pack
(4526)

The GeneralAire FP2025X5 MERV 8 AC Filter Media is a flatpac expandable replacement filter with a MERV 8 rating. This expandable, high capacity, depth loading fiberglass filter that allows for reduced and efficient storage.


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GeneralAire FP2025X5 MERV 8 AC Filter Media
Our Price: $263.88

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GeneralAire FP12020X5 MERV 8 AC Filter Media 12-Pack
(4528)

The GeneralAire FP12020X5 MERV 8 AC Filter Media fits all furnaces or air conditioners that require the following size filter: 20" x 20" x 5" This GeneralAire FP12020x5 filter media is rated MERV 8. The GeneralAire FP12020X5 MERV 8 AC Filte


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GeneralAire FP12020X5 MERV 8 AC Filter Media
Our Price: $263.88

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GeneralAire 14003 Replacement Air Cleaner Cabinet
(4505)

The GeneralAire 14003 Replacement Air Cleaner Cabinet fits the following models of air cleaners: GeneralAire MAC2000 GeneralAire MAC2020 GeneralAire MAC1400 GeneralAire MAC1200 This GeneralAire MAC2000 air cleaner part is the air cleaner's


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GeneralAire 14003 Replacement Air Cleaner Cabinet
Our Price: $61.99
Retail: $69.99
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GeneralAire Air Cleaner Prefilter R2-0855
(4782)

The GeneralAire Air Cleaner Prefilter R2-0855 is the correct replacement prefilter for the following model of air cleaner: GeneralAire GA50A22 This GeneralAire air cleaner prefilter measures 20" x 10 1/2". The GeneralAire R2-0855 is also known


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GeneralAire Air Cleaner Prefilter R2-0855
Our Price: $31.99
Retail: $39.99
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General Aire Air Cleaner Prefilter G8-0885
(4783)

The General Aire Air Cleaner Prefilter G8-0885 is a replacement air filter for the GeneralAire GA52F32 Grill Mount Air Cleaner. The G8-0885 prefilter captures large airborne particles within your home and sends the smaller particles to the main air


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General Aire Air Cleaner Prefilter G8-0885
Our Price: $31.99
Retail: $39.99
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General Aire Air Cleaner On/Off Switch C5-0223
(4787)

The General Aire Air Cleaner On/Off Switch C5-0223 fits the following model of air cleaner: GeneralAire GA52F32 This GeneralAire air cleaner switch is the air cleaner's on/off switch. The GeneralAire air cleaner on/off switch C5-0223 is also k


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General Aire Air Cleaner On/Off Switch C5-0223
Our Price: $31.99
Retail: $39.99
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GeneralAire C5-0855 Air Cleaner PreFilter
(4724)

The General Aire C5-0855 Air Cleaner PreFilter is a replacement part for the GeneralAir SSCB7W-R and SSCB7-WHT Air Cleaners, and sits above the Intake Grill and under the Cell within the Cover Assembly.


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GeneralAire C5-0855 Air Cleaner PreFilter
Our Price: $41.99
Retail: $49.99
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General Aire 24v Transformer R2-053D
(4790)

The General Air 24v Transformer R2-053D is a replacement transformer for the GeneralAire Model GA52F32 Grill Mount Air Cleaner. The GeneralAire R2-053D transformer is installed inside of your GA52F32 air cleaner next to the R2-055D power control boa


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General Aire 24v Transformer R2-053D
Our Price: $26.92
Retail: $29.99
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General Aire Contact Assembly G8-0521
(GeneralAire 4791)

The General Aire Contact Assembly G8-0521 fits the following model of air cleaner: GeneralAire GA52F32 This GeneralAire part 4791 is the air cleaner's contact assembly. The GeneralAire contact assembly G8-0521 is also known as GeneralAire part


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General Aire Contact Assembly G8-0521
Our Price: $46.71
Retail: $46.95
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General Aire Contact Assembly C5-0621
(4706)

The General Aire Contact Assembly C5-0621 fits the following models of air cleaners: GeneralAire SSCB15-WHT GeneralAire SSCB15W-R This GeneralAire part 4706 is the air cleaner's contact assembly. The GeneralAire contact assembly C5-0621 is al


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General Aire Contact Assembly C5-0621
Our Price: $31.99
Retail: $39.99
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General Aire Intake Grill C5-0615
(4707)

The General Aire C5-0615 Intake Grill is a replacement intake grill that is attached to the external cover on GeneralAir SSCB15-X air cleaner systems. Also known as part 4707 or EACCM1305.


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General Aire Intake Grill C5-0615
Our Price: $81.99
Retail: $89.99
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GeneralAire 100329 Ventilator Filter Replacement
(4667)

The GeneralAire 100329 Ventilator Filter Replacement is the correct replacement for the following models of energy/heat recovery ventilators: ERV3220 HRV8220 Energy/heat recovery ventilators bring fresh outdoor air into your home while gettin


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GeneralAire 100329 Ventilator Filter Replacement
Our Price: $51.99
Retail: $69.99
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GeneralAire 201-12880 MERV 11 Filter Media 9-Pack
(4050)

The GeneralAire 201-12880 is a compatible replacement for the following air cleaners: Aprilaire 2200 Air Cleaner Aprilaire 2250 Air Cleaner


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GeneralAire 201-12880 MERV 11 Filter Media
Our Price: $449.91

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Air Care 1050 Tabletop Air Purifier Filter 6-Pack 6-Pack
(1050)

The Essick Air 1050 Tabletop Air Purifier Filter is a two-stage air cleaning filter that fits several Bemis by Essick Air air purifier models. This tabletop air cleaner filter removes dust, pollen, smoke, and odors from your air and utilizes activat


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Air Care 1050 Tabletop Air Purifier Filter 6-Pack
Our Price: $47.94

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Essick Air 1102 Electrostatic and Carbon PreFilter 6-Pack
(1102SS)

The Essick Air 1102 Electrostatic and Carbon PreFilter is a replacement electrostatic carbon pre-filter for the Bemis/Esssics 200 001 HEPA Air Purifier. This pre-filter protects the life of your air purifier's HEPA filters by trapping larger particl


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Essick Air 1102 Electrostatic and Carbon PreFilter
Our Price: $89.70

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Carrier P1101045 Humidifier Water Panel Filter 10-Pack
(Carrier P1101045 R)

The Carrier P1101045 Humidifier Water Panel Filter offers Honeycomb filtration to trap mineral impurities and pollutants found in water. The Carrier Water Panel Filter should be replaced, once every 6 months or more often in hard water areas.


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Carrier P1101045 Humidifier Water Panel Filter
Our Price: $84.00

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GeneralAire F1021 MERV 13 16x25x4 Media Filter 10-Pack
(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 MERV 13 16x25x4 Media Filter
Our Price: $537.40

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Hamilton Humidifier Evaporator Pad EP-037 14-Pack
(EP-037)

The Hamilton EP-037 is the correct replacement for the following model of humidifier: Hamilton 12HF The Hamilton Humidifier Evaporator Pad EP-037 collects moisture in the humidifier, converting it into humidity in your indoor air. This humidif

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Hamilton Humidifier Evaporator Pad EP-037 14-Pack
Our Price: $252.86
Retail: $419.86
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Trion 227833-003 Charcoal Filter 5-Pack
(227833-003)

The Trion 227833-003 Charcoal Filter is an air filter replacement that fits select Trion 16x25 air cleaner models (see above). This Trion filter measures approximately 12" x 16" x 3/8" and features activated charcoal that absorbs odors and


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Trion 227833-003 Charcoal Filter
Our Price: $169.95

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Aprilaire 4896 Door Seal for 1413 Upgrade Kit 20pk 20-Pack
(Aprilaire 4896)

The Aprilaire 4896 Door Seal for 1413 Upgrade Kit is a replacement door seal for the Aprilaire 1413 Upgrade kit, which is used with the Spacegard 2400 and Aprilaire 2400 air cleaner models. This door seal is constructed with styrofoam and is fully f


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Aprilaire 4896 Door Seal for 1413 Upgrade Kit 20pk
Our Price: $849.00

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Goodman GDMHEPA400 Whole House HEPA Air Purifier
(GDMHEPA400)

The Goodman GDMHEPA400 Whole House HEPA Air Purifier is a high-efficiency air purifier is a True HEPA air cleaner that is engineered to improve the quality of indoor air.

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Goodman GDMHEPA400 Whole House HEPA Air Purifier
Our Price: $340.99
Retail: $399.99
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Goodman G13MU1625 Replacement Air Filters 3-Pack
(G1-1056)

The Goodman G13MU1625 Replacement Air Filters uses both charged fibers and traditional mechanical filtration principles.

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Goodman G13MU1625 Replacement Air Filters
Our Price: $157.05

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Trion 22x16 Charcoal Filter - 227833-002
(227833-002)

The Trion 22x16 Charcoal Filter - 227833-002 measures 22" x 16" and fits select air cleaner models from Trion. This Trion filter is constructed with activated charcoal which absorbs odors and cleans air. This Trion air filter replacement filter shou


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Trion 22x16 Charcoal Filter - 227833-002
Our Price: $42.12
Retail: $49.99
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Trion 227833-006 Charcoal After Filter for HE20x20
(227833-006)

The Trion 227833-006 Charcoal After Filter for HE20x20 is a replacement charcoal filter for the Trion HE20X20 Electronic Air Cleaner. This Trion filter replacement features activated charcoal for the removal of airborne odors in your home. This acti


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Trion 227833-006 Charcoal After Filter for HE20x20
Our Price: $66.99
Retail: $69.99
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Filters Fast - Air Filters

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