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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:


BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
(HRF-B2 1 R)

The Honeywell HRF-B2 Carbon PreFilter 2-Pack is the correct replacement for the following models of Honeywell air purifiers: HHT-090 HHT-011 HHT-145 HPA-150 HPA-050 This carbon prefilter removes mold spores, pet dander, tobacco smoke, and


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BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
Our Price: $17.99
Retail: $19.99
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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


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Honeywell FC40R1110 Return Grille Air Filter 14X20x3
Our Price: $62.95
Retail: $139.98
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Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 4-Pack 4-Pack
(Filtrete-Odor-14251)

The Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 is a carbon air filter designed for residential use. This Filtrete air filter effectively removes odors (such as pet, smoke, cooking, mildew, and cleaning chemicals) through activated carbon. Th


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Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 4-Pack
Our Price: $86.44

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Hunter 30962 QuietFlo HEPA Purifier Filter
(30962)

The Hunter 30962 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.97% of particles as small as 0.3 microns. This is a true HEPA filter and a genuine OEM Hunter part.


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Hunter 30962 QuietFlo HEPA Purifier Filter
Our Price: $73.99
Retail: $85.00
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Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
(455601-001C)

The Trion Duct Mount HE Plus 1400, 455601-001C is an Electronic Whole House Air Purification System. The HE Plus 1400 includes an elctronic air flow sensor. Genuine Trion Fedders product. Learn how the HE Plus 1400 can help you live a healthy life..

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In Stock! Ships in 10 to 11 business days.
Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
Our Price: $371.95
Retail: $440.00
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Essick Air 1103 HEPA Filter Replacement 3-Pack
(1103)

The Essick Air 1103 HEPA Filter Replacement fits the HEPA Filter 1103 for Bemis True HEPA Air Purification System 127-001. These Essick filters are rated to remove 99.97 percent of all airborne particles.


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Essick Air 1103 HEPA Filter Replacement
Our Price: $182.97

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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack 4-Pack
(98N42)

The Lennox 98N42 is a MERV 8 furnace filter 4-pack for your home. This furnace filter will protect your home from unhealthy contaminants and help keep your heating and cooling bill low.


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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack
Our Price: $37.95

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Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack 4-Pack
(91X24)

The Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack is a set of pleated air filters that measures approximately 15x20x1 and has an a MERV 8 rating. This air conditioner filter arrives in a convenient 4 pack, which will last up to one year.


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Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack
Our Price: $37.95

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FiltersFast A10PR R Replacement for Lasko 5000L
(Lasko 5000L R)

The FiltersFast A10PR R is the correct replacement for the Lasko 5000L R and for the following humidifier models:


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FiltersFast A10PR R Replacement for Lasko 5000L
As Low As: $6.99
Retail: $10.99
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GeneralAire GA23 Humidifier Vapor Pad Replacement 10-Pack
(7923)

Humidifier vapor pads, sometimes called humidifier filter pads or vapor pad replacements, are one of the most important elements in a humidifier. This is because they are the key component in creating the vapor that re-introduces moisture into dry a


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GeneralAire GA23 Humidifier Vapor Pad Replacement
Our Price: $109.90

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Lennox X8345 MERV 16 Filter Upgrade Kit
(X8345)

The Lennox upgrade kit, part number x8345 is meant for your Lennox PureAir PCO-20C air filtration unit. This MERV 16 filter measures 21" x 26" x 4" inches. Also known as the Lennox healthy climate, this filter upgrade kit will provide you with even

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Lennox X8345 MERV 16 Filter Upgrade Kit
Our Price: $312.15
Retail: $343.15
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Lennox X4137 HEPA 20 Carbon PreFilter Replacement
(X4137)

The Lennox X4137 HEPA 20 Carbon PreFilter Replacement is a replacement carbon pre-filter for the Lennox Healthy Climate HEPA 20 Filtration System. This carbon pre-filter is the first stage of the HEPA 20 filtration process.


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Lennox X4137 HEPA 20 Carbon PreFilter Replacement
Our Price: $38.67
Retail: $46.95
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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1" MERV 13 6-Pack
(FFM13 6pk AS)

The FiltersFast 1" Air Filters MERV 13 6-Pack is the compatible replacement for the Aerostar 1" MERV 13 Air Filters.


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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1"  MERV 13 6-Pack
Our Price: $57.95
Retail: $69.99
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FiltersFast 5" Trane Compatible 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


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FiltersFast 5" Trane Compatible Air Filter 2-Pack
Our Price: $70.99
Retail: $104.99
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Totaline DTLP102-1620 16x20 MERV 11 Filter
(DTLP102-1620)

The Totaline DTLP102-1620 16x20 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


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Totaline DTLP102-1620 16x20 MERV 11 Filter
Our Price: $37.45
Retail: $45.99
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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.

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This item has been discontinued. Please review the product description for more information.
Honeywell HDC-200 Humidifier Filters
Our Price: $17.98

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BestAir R14ALLM Replacement For Kenmore 83120 2-Pack
(KENMORE 83120 1 R)

The Kenmore 83120 Carbon PreFilter 2-Pack is the correct replacement for: several models of Kenmore air purifiers This carbon prefilter has a shipping weight of 3 lbs. This Kenmore prefilter 2-pack comes with 2 filters in each pack.


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BestAir R14ALLM Replacement For Kenmore 83120 2-Pack
Our Price: $17.99
Retail: $19.99
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BestAir R14ALLM Replacement For Kenmore 83176 2-Pack
(KENMORE 83176 1 R)

The Kenmore 83176 Carbon PreFilter comes in this cost-cutting 2-pack package. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


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BestAir R14ALLM Replacement For Kenmore 83176 2-Pack
Our Price: $17.99
Retail: $19.99
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Trion Air Bear Cub Air Cleaner 16x25x3 Merv 11
(455602-925)

The 455602-925 is the correct air cleaner that uses: 16" X 25" X 3" MERV 11 Air Bear Filter Replacements.

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Trion Air Bear Cub Air Cleaner 16x25x3 Merv 11
Our Price: $86.99
Retail: $99.99
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Skuttle Air Cleaner Filter 16x20x5 000-0448-004 3-Pack
(000-0448-004)

The Skuttle 000-0448-004 Air Cleaner Filter can be used on air cleaners requiring 16"x20"x5" filters. The Skuttle 448-4 dramatically removes airborne particulates such as pollen, mold spores, dust, dust mites and allergens from your indoor air.


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Skuttle Air Cleaner Filter 16x20x5 000-0448-004
Our Price: $96.00

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3M OAC100RF Replacement Air Filter 6-Pack
(OAC100RF)

The 3M OAC100RF Replacement Air Filter is the replacement filter for the 3M Filtrete OAC100 Office Air Cleaner. This easy to change filter reduces airborne dust, pollen and particulates down to 0.01 microns.

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Special Order. Ships in 14 days.
3M OAC100RF Replacement Air Filter 6-Pack
Our Price: $133.94
Retail: $162.00
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Lennox X8306 MERV 16 HCXF16-16 Expandable Filter Kit
(X8306)

The Lennox X8306 expandable filter HCXF16-16 is a MERV 16 furnace filter for your home. This Lennox healthy climate filter measures 16x25x5 inches.

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Lennox X8306 MERV 16 HCXF16-16 Expandable Filter Kit
Our Price: $142.95
Retail: $169.99
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Honeywell Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
(HTRN2127T1)

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

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Honeywell Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
Our Price: $154.50
Retail: $179.99
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GeneralAire F1016 MERV 11 Filter Media Cartridge
(4561)

The General Aire F1016 MERV 11 Filter Media Cartridge is the replacement part for the General Air TERSus2000 System. This GeneralAir Filter reduces airborne particles as small as 0.3 micron in order to improve indoor air quality dramatically.


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GeneralAire F1016 MERV 11 Filter Media Cartridge
Our Price: $51.99
Retail: $59.99
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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


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Spacegard Aprilaire 2600 Filter Media Replacement
Our Price: $639.90

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Filters Fast - Air Filters

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