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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:


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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Hunter 30925 HEPAtech Purifier Filter 6-Pack
(30925)

The Hunter 30925 HEPAtech v Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30925 HEPAtech Purifier Filter
Our Price: $150.00

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Hunter 30938 QuietFlo HEPA Purifier Filter 3-Pack
(30938)

The Hunter 30938 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30938 QuietFlo HEPA Purifier Filter
Our Price: $188.58

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Hunter 30960 QuietFlo HEPA Purifier Filter 3-Pack
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $210.75

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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack 12-Pack
(FC2400A1005)

The Honeywell FC2400A1005 is a compatible AC filter for the Aprilaire and Space Gard 2400 (filter model 401) and is also used in Research Products cabinet models 2200, 2250 and 2400. This filter boasts a MERV 10 rating.


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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
Our Price: $561.60

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Aprilaire 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.


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Aprilaire EZ Kleen Filter Replacement 2-Pack
Our Price: $43.00

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Holmes HAPF91 Purifier Carbon PreFilter 25 2-Pack
(ROHAPF91M)

This Holmes HAPF91 carbon odor filter, a Genuine OEM Holmes Filter, can trap up to 4,000 odors and impurities from your home. The Holmes carbon filter comes 2 per pack.


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Holmes HAPF91 Purifier Carbon PreFilter 25
Our Price: $167.00

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Holmes HAPF41 Air Purifier Carbon Prefilter 2-Pack
(ROHAPF41M)

The Holmes HAPF41 Air Purifier Carbon PreFilter-2 Pack is a replacement pack of carbon pre-filters for the Holmes HAP-300 and Holmes HAP-3004 air purifiers. This two pack of carbon filters protects the HEPA filter of your Holmes air cleaner and prev


Special Order. Ships in 30 days.
Holmes HAPF41 Air Purifier Carbon Prefilter
Our Price: $17.96

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BestAir Ceiling Fan Air Filter 6-Pack
(CF2)

The BestAir Ceiling Fan Air Filter comes in this convenient, cost effective 2-pack value set.


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BestAir Ceiling Fan Air Filter
Our Price: $23.94

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3M Filtrete OAC250 Replacement Air Cleaner Filter 6-Pack
(OAC250RF)

The 3M Filtrete OAC250 Replacement Air Cleaner Filter is used in the 3M Filtrete OAC250 Office Air Cleaner Purifier. This filter replacement is also known as part number OAC250RF.


Special Order. Ships in 15 days.
3M Filtrete OAC250 Replacement Air Cleaner Filter
Our Price: $305.94

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Carrier 356066-1201 Charcoal Filter EACBAXCC0020 2-Pack
(356066-1201)

The Carrier 356066-1201 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


Special Order. Ships in 7 days.
Carrier 356066-1201 Charcoal Filter EACBAXCC0020
Our Price: $96.96

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Spacegard Aprilaire 2600 Filter Media Replacement 10-Pack
(Aprilaire 261)

This genuine Spacegard Aprilaire 2600 Filter Media Replacement, also known as the Aprilaire 261 Filter, is the replacement filter used in the Spacegard Aprilaire 2600 Air Cleaner. The Aprilaire 261 Air Filter / Aprilaire 2600 Replacement Filter is a


Special Order. Ships in 7 days.
Spacegard Aprilaire 2600 Filter Media Replacement
Our Price: $639.90

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Honeywell HDC-200 Humidifier Filters 2-Pack
(HDC-200)

The Honeywell HDC-200 Humidifier Filter is a genuine Honeywell Demineralization Cartridge. This humidifier filter replacement comes in a package of 2 filter cartridges.

Free shipping within the continental United States!

Special Order. Ships in 14 days.
Honeywell HDC-200 Humidifier Filters
Our Price: $17.98

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3M Filtrete OAC50RF Filter Replacement
(OAC50RF)

3M Filtrete OAC50 Replacement Air Cleaner Filter is the replacement filter for the OAC50 Office Air Cleaner for cubicles. This air cleaner filter is also known as replacement filter OAC50RF.


Discontinued Product Read Description.
3M Filtrete OAC50RF Filter Replacement
Our Price: $81.43
Retail: $89.99
You Save 10%!

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3M Filtrete OAC200 Replacement Air Cleaner Filter 6-Pack
(OAC200RF)

The 3M Filtrete OAC200 Replacement Air Cleaner Filter is a replacement filter for the 3M Filtrete OAC200 Office Air Cleaner.


Discontinued Product Read Description.
3M Filtrete OAC200 Replacement Air Cleaner Filter 6-Pack
Our Price: $45.99
Retail: $49.99
You Save 8%!

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Carrier 88NH1520B101 Humidifier Filter
(88NH1520B101)

The Carrier 88NH1520B101 Humidifier Filter is the correct replacement for your Carrier 49BA002 Humidifier. This humidifier filter features an aluminum mesh design with metal frame. The humidifier filter helps to generate the humidity you rely on dur


Discontinued Product Read Description.
Carrier 88NH1520B101 Humidifier Filter
Our Price: $63.16
Retail: $79.99
You Save 21%!

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FiltersFast Custom Size MERV-13 Filters 6 Pack
(FFCAFM13)

FiltersFast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! FiltersFast Air Filters are now available in custom sizes! View details for order guidelines...


Discontinued Product Read Description.
FiltersFast Custom Size MERV-13 Filters 6 Pack
Our Price: $41.00

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Whirlpool Refrigerator Air Filter System W10153422
(W10153422)

The Whirlpool W10153422 Refrigerator Air Filter and Housing installs easily into 22 - 25 cu. ft. Whirlpool and KitchenAid side by side refrigerators with air vents in the snack drawer. The activated carbon in this Whirlpool refrigerator air filter


Discontinued Product Read Description.
Whirlpool Refrigerator Air Filter System W10153422
Our Price: $15.99
Retail: $16.99
You Save 6%!

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FiltersFast Custom Size Air Filters 6 Pack
(FFCAF)

FiltersFast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! FiltersFast Air Filters are now available in custom sizes! View details for order guidelines.


Discontinued Product Read Description.
FiltersFast Custom Size Air Filters 6 Pack
Our Price: $41.00

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Holmes HAPF21, 9000436 Replacement Filter
(HAPF21)

The Holmes HAPF21 Replacement Filter is the main HEPA filter in Holmes models HAP222, HAP221, HAP220, HAP223, and HAP2234. Also known as part number HAPF21CS.


Discontinued Product Read Description.
Holmes HAPF21, 9000436 Replacement Filter
Our Price: $11.00

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Filters Fast - Air Filters

" Just to express my complete satisfaction with your ordering process and, of course, great pricing. When I need a replacement of refrigerator or HVAC filters, I'll be contacting you again. " - Frank, Corona, CA
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