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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 32001 2-Pack
(32001)

The Honeywell 32001 Carbon PreFilter 2-Pack is a high quality carbon pre-filter that removes household odors and other impurities. This Honeywell 32001 Carbon PreFilter 2-Pack should be replaced every three months for optimum performance.


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BestAir R14ALLM Replacement For Honeywell 32001 2-Pack
Our Price: $19.95
Retail: $24.99
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BestAir R14ALLM Replacement For Kenmore PF155 2-Pack
(KENMORE PF155)

The Kenmore PF155 Carbon PreFilter 2-Pack is a replacement pack of carbon pre-filters that is compatible with the Honeywell 51000 model air purifier and several other models from Kenmore. This carbon filter measures approximately 34 3/4" x 7" x 1/16


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BestAir R14ALLM Replacement For Kenmore PF155 2-Pack
Our Price: $19.95
Retail: $24.99
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BestAir R14ALLM Replacement For Norelco CAF150 2-Pack
(NORELCO CAF150)

The Norelco CAF150 Carbon PreFilter 2-Pack is the correct replacement for the following models of Norelco air cleaners: CAS 1050 CAS 1051 CAS 2051 This carbon prefilter measures 7.28" x 2.36" x 9.45". This Norelco prefilter comes with two fi


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BestAir R14ALLM Replacement For Norelco CAF150 2-Pack
Our Price: $19.95
Retail: $24.99
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BestAir R14ALLM Replacement For Pollenex FP1000 2-Pack
(POLLENEX FP1000)

The Pollenex FP1000 is the correct replacement for the following air cleaners: Pollenex Air Cleaners requiring a carbon pre-filter.


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BestAir R14ALLM Replacement For Pollenex FP1000 2-Pack
Our Price: $19.95
Retail: $24.99
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FiltersFast HAPF600 R Replacement for Bionaire HAPF600CS R
(Bionaire HAPF600CS R)

The FiltersFast HAPF600 R is a HEPA filter that eliminates dust, pollen, and other airborne contaminants for better air quality


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FiltersFast HAPF600 R Replacement for Bionaire HAPF600CS R
Our Price: $24.95
Retail: $29.99
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BioStrike CFF Ceiling Fan Air Filter - 93880
(BioStrike CFF)

The BioStrike Ceiling Fan Air Filter (BioStrike CFF) can be used with most ceiling fans to reduce dust, dirt, hair, pollen, pet dander, mold, and other airborne allergens. It attaches to the ceiling fan blade(s) to provide air filtration every time


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BioStrike CFF Ceiling Fan Air Filter - 93880
Our Price: $12.49
Retail: $14.99
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3M Filtrete OAC250RF Replacement Filter for 3M Filtrete OAC250 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.


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3M Filtrete OAC250RF Replacement Filter for 3M Filtrete OAC250
Our Price: $299.70

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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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3M OAC100RF Replacement Air Filter 6-Pack
Our Price: $134.94
Retail: $161.99
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Trion Air Bear 455602-025 Supreme 2000 Media Air Cleaner
(455602-025)

The Trion Air Bear Supreme 2000 Media Air Cleaner, part number 455602-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles from your air.

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Trion Air Bear 455602-025 Supreme 2000 Media Air Cleaner
Our Price: $101.95
Retail: $120.99
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Trion Air Bear 455602-119C Supreme 1400 Media Air Cleaner
(455602-119C)

The Trion Air Bear Supreme 1400 Media Air Cleaner, part number 455602-119C, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles and other microscopic particles.

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Trion Air Bear 455602-119C Supreme 1400 Media Air Cleaner
Our Price: $111.95
Retail: $128.95
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Trion 455600-001 Duct Mount HE Plus 2000
(455600-001)

The Trion Duct Mount HE Plus 2000, 455600-001 is an Electronic Whole House Air Purification System. The HE Plus 2000 includes an elctronic air flow sensor. This is a genuine Trion product. Learn how the HE Plus 2000 can help you...

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Trion 455600-001 Duct Mount HE Plus 2000
Our Price: $431.00
Retail: $519.99
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Holmes HAPF92 Carbon Odor Pre-Filter 2-Pack 2-Pack
(HAPF92)

The Holmes HAPF92CS Carbon Odor Pre-Filter 2-pack fits the Holmes Air Purifier model HAP292. It extends the life of your air purifier's HEPA filter (Holmes model HAPF38CS) by trapping over 4000 chemicals and eliminates odors.


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Holmes HAPF92 Carbon Odor Pre-Filter 2-Pack
Our Price: $15.98

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Honeywell TRN2121T1 Replacement for Trane BAYFTAH21M, 21.5x21x5 Perfect Fit - 3-Pack
(TRN2121T1)

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 TRN2121T1 Replacement for Trane BAYFTAH21M, 21.5x21x5 Perfect Fit - 3-Pack
Our Price: $150.00
Retail: $175.99
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Honeywell TRN1427T1 Replacement for Trane BAYFTFR14M, 14.5x27x5 Perfect Fit - 3-Pack
(TRN1427T1)

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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In Stock! Ships in 49 to 50 business days.
Honeywell TRN1427T1 Replacement for Trane BAYFTFR14M, 14.5x27x5 Perfect Fit - 3-Pack
Our Price: $123.00
Retail: $143.99
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$2,000 Premium Fiberglass Air Filter
(Air 2000)

How does one simple fiberglass air filter cost $2,000? Must be one really good air filter, right?

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$2,000 Premium Fiberglass Air Filter
Our Price: $2,002.00
Retail: $2,354.99
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Trion Air Bear 455602-625 Supreme 1400 Air Cleaner Merv 11
(455602-625)

The Trion Air Bear Supreme 1400 Air Cleaner Merv 11 is a whole house air cleaner that captures and holds pollutants within its filter. The filter then efficiently allows the air to pass throughout the system. The Trion Supreme 1400 features a rugged

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Trion Air Bear 455602-625 Supreme 1400 Air Cleaner Merv 11
Our Price: $112.99
Retail: $131.99
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Trion Air Bear 455602-425 Cub Air Cleaner 16x25x3 Merv 8
(455602-425)

The Trion Air Bear Cub Air Cleaner 16x25x3 is a genuine filter for use in your heating and cooling system. This Trion Air Bear Media Air Cleaner has a MERV 8 rating that will rid your home of air contaminants including lint, dust, pollen, mold spore

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Trion Air Bear 455602-425 Cub Air Cleaner 16x25x3 Merv  8
Our Price: $99.99
Retail: $119.99
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Trion Air Bear 455602-925 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 455602-925 Cub Air Cleaner 16x25x3 Merv 11
Our Price: $87.99
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BestAir A12WPR Replacement for Space-Gard #12 Humidifier Filter
(Space-Gard 12 R)

The BestAir A12WPR Humidifier Water Panel Replacement generates the type of humidity needed for your indoor air during the heating season.


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BestAir A12WPR Replacement for Space-Gard #12 Humidifier Filter
As Low As: $12.95
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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: $41.95

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Lennox 94X98 HEPA 20 Filter System Carbon Canister
(94X98)

The Lennox 94X98 HEPA 20 Filter System Carbon Canister is a replacement carbon canister for the Lennox HEPA 20 whole house air cleaner, which is designed to be attached to the ductwork of a home or office.

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Lennox 94X98 HEPA 20 Filter System Carbon Canister
Our Price: $106.95
Retail: $140.99
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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N43)

The Lennox 98N43 MERV 8 Pleated Furnace Filters 4-Pack is the correct replacement for all furnaces that require a 20x20x1 filter. These Lennox Healthy Climate filters remove particles and bioaerosols as small as 3 microns


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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $99.00

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Lennox 98N45 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N45)

This Lennox 98N45 MERV 8 Pleated Furnace Filters 4-Pack serve as an excellent choice to upgrade from the generic fiberglass filters in your local hardware store. The healthy climate filters come in this money-saving 4-pack package.


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Lennox 98N45 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $46.96

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Lennox 98N46 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N46)

This Lennox 98N46 MERV 8 Pleated Furnace Filters 4-Pack serves as an excellent choice to upgrade from the generic fiberglass filters in your local hardware store. The healthy climate filters come in this money-saving 4-pack package.


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Lennox 98N46 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $41.96

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Lennox X6666 MERV 16 Pleated Air Filter Media for PCO-12C 5-Pack
(X6666)

This Lennox Box Filter is a genuine MERV 16 filter. The Lennox Furnace Filter Box should only be replaced every six months.

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Lennox X6666 MERV 16 Pleated Air Filter Media for PCO-12C
Our Price: $459.75

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