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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.

Routine maintenance is a critical part of caring for your home. One area that should not be overlooked is replacing your home’s furnace filters on a regular basis following the manufacturers recommended guidelines. By doing this, you will help prolong the life of your system, as well as help eliminate indoor air contaminates.

Air filters help rid your home of a variety of air pollutants including smog, smoke, pollen, bacteria, pet dander, mold spores, dust, dust mites, debris and virus carrying particles. The MERV rating on furnace filters can help guide you in this area. The higher the rating, the more efficient the air filter will be at eliminating indoor contaminates.

Filtrete, Trion, 3M and Honeywell all manufacture high quality filters in a variety of sizes to meet all of your air filtration needs.


Furnace Filters full product list:


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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In Stock! Ships in 12 to 13 business days.
Trion Air Bear 455602-025 Supreme 2000 Media Air Cleaner
Our Price: $100.95
Retail: $120.99
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Trion Air Bear 455602-225 Supreme 20x20 Media Air Cleaner
(455602-225)

The Trion Air Bear Supreme 20x20 Media Air Cleaner, part number 455604-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles such as grease and soot from your air.

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In Stock! Ships in 18 to 19 business days.
Trion Air Bear 455602-225 Supreme 20x20 Media Air Cleaner
Our Price: $111.99
Retail: $131.99
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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 19 to 20 business days.
Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
Our Price: $371.95
Retail: $439.99
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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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Out of stock
$2,000 Premium Fiberglass Air Filter
Our Price: $2,001.00
Retail: $2,354.99
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Trion Air Bear 455602-525 Supreme 2000 Air Cleaner Merv 11
(455602-525)

The Trion Air Bear Supreme 2000 Air Cleaner Merv 11 is a whole house air cleaner that filters various airborne particles. With this Trion Air Bear cleaner you will be able to capture and hold pollutants from the air inside the filter, which will all

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In Stock! Ships in 10 to 11 business days.
Trion Air Bear 455602-525 Supreme 2000 Air Cleaner Merv 11
Our Price: $90.95
Retail: $199.99
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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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In Stock! Ships in 14 to 15 business days.
Trion Air Bear 455602-625 Supreme 1400 Air Cleaner Merv 11
Our Price: $111.99
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


In Stock! Ships in 14 to 15 business days.
Trion Air Bear 455602-425 Cub Air Cleaner 16x25x3 Merv  8
Our Price: $81.99
Retail: $99.99
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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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In Stock! Ships in 26 to 27 business days.
Trion Air Bear 455602-925 Cub Air Cleaner 16x25x3 Merv 11
Our Price: $86.99
Retail: $102.99
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Honeywell FC40R1185 Return Air Grille Filter 18x18 5-Pack
(FC40R1185)

The Honeywell FC40R1185 Return Air Grille Filter 18x18 is a replacement air filter that mounts in most return filter grilles. The Honeywell return air grille filter features four inches of depth, which provides a higher efficiency than standard one


In Stock! Ships in 53 to 54 business days.
Honeywell FC40R1185 Return Air Grille Filter 18x18
Our Price: $252.50

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Indoor Air Quality Test Kit, Bio-Scan 400 10-Pack
(Bio-Scan 400)

Did you know most indoor air is littered with polutants that make breathing in your own home or office hazardous for your health! Allergies, dry, itchy eyes and throat can all be signs that your indoor air quality is sub-standard. The Bio-Scan 400...


Special Order. Ships in 36 days.
Indoor Air Quality Test Kit, Bio-Scan 400
Our Price: $638.50

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Free Flow 93524 Room Air Conditioner Filter, 1777 - 15" x 24"
(93524)

This Free Flow Room Air Conditioner Filter (1777) is a universal 15" x 24" cut to fit black foam room air conditioner filter. It filters dirt, dust, soot, pollen, and other allergens.


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Free Flow 93524 Room Air Conditioner Filter, 1777 - 15" x 24"
Our Price: $10.99
Retail: $15.99
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Trion 123324-008 Trim T / Trim TX Air Cleaner Prefilter
(123324-008)

The Trion Trim T / Trim TX Air Cleaner Prefilter is an aluminum prefilter for electronic air cleaners. Trion Trim T electronic air cleaners are whole house air cleaners built for air duct system. Electricity is utilized to attract and capture dust,


Special Order. Ships in 28 days.
Trion 123324-008 Trim T / Trim TX Air Cleaner Prefilter
Our Price: $22.99
Retail: $29.99
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Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5 2-Pack
(BAYFRAME145A)

The Trane BAYFRAME145A is an air filter kit that fits the following air cleaner model: Trane TFM145A0FR0 The Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane Perf

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Special Order. Ships in 24 days.
Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5
Our Price: $313.00

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Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5
(BAYFRAME235A)

The Trane BAYFRAME235A is an air filter kit that fits the following air cleaner model: Trane TFM235A0AH1 The Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5 contains 1 plastic frame and 1 BAYFTAHEXM expandable accordion filter. This Trane Perfe

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Special Order. Ships in 9 days.
Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5
Our Price: $152.63
Retail: $199.99
You Save 24%!

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Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5 2-Pack
(BAYFRAME245A)

The Trane BAYFRAME245A is an air filter kit that fits the following air cleaner model: Trane TFM245A0FR0 The Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane Perf

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Special Order. Ships in 25 days.
Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5
Our Price: $396.72

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Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 6-Pack 2-Pack
(BAYFTFR24W1A)

The Trane BAYFTFR24W1A is a pre-filter for use in the following application: 24 1/2 inch enclosures The Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 has a nominal size of 24 1/2 inches x 27 inches x 1 inch. The actual size of this Trane

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Special Order. Ships in 38 days.
Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 6-Pack
Our Price: $171.94

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3M Filtrete 4 Inch Allergen Reduction Filter
(4 inch Allergen)

3M Filtrete Allergen Reduction Filter for Media Air Cleaners are the smart choice if you're looking to upgrade or retrofit the air filter in your existing HVAC system. Captures 97% of large airborne allergens like pollen, mold spores, & dust mites.


In Stock! Ships in 13 to 14 business days.
3M Filtrete 4 Inch Allergen Reduction Filter
As Low As: $62.32
Retail: $78.99
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3M Filtrete 4 Inch Allergen Media Filter 4-pack
(4 inch Allergen 4-pack)

3M Filtrete Allergen Reduction Filter for Media Air Cleaners are the smart choice if you're looking to upgrade or retrofit the air filter in your existing HVAC system. Captures 97% of large airborne allergens like pollen, mold spores, & dust mites.

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In Stock! Ships in 13 to 14 business days.
3M Filtrete 4 Inch Allergen Media Filter 4-pack
Our Price: $130.00
Retail: $152.99
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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.


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FiltersFast Custom Size Air Filters 6 Pack
Our Price: $41.00
Retail: $48.99
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FiltersFast GeneralAire Compatible 20x24x5, 2-pack
(FFC20245GA)

The FiltersFast Compatible 20x24x5 MERV 11 Air Filter can be used as a replacement for GeneralAire part number 12758. Fits Generalaire AC-1 and Byrant 902BXX020.


In Stock! Ships in 3 to 4 business days.
FiltersFast GeneralAire Compatible 20x24x5, 2-pack
Our Price: $49.25
Retail: $57.99
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FiltersFast MERV 11 Return Grille Air Filter 5"
(FFRAGF)

The FiltersFast MERV 11 Return Grille Air Filter 5" are a great option for upgrading or replacing the traditional 1-inch air filter found in your home or office. View details to learn more...


In Stock! Ships in 12 to 13 business days.
FiltersFast MERV 11 Return Grille Air Filter 5"
Our Price: $30.99
Retail: $39.99
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FiltersFast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a FiltersFast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and FiltersFast now offers this rating in a 5" Return Air Grille application.


In Stock! Ships in 14 to 15 business days.
FiltersFast MERV 13 Return Grille Air Filter - 5"
Our Price: $40.99
Retail: $49.99
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Honeywell FC100A1052 12.5" x 20" Media Air Filter
(FC100A1052)

The Honeywell FC100A1052 12.5" x 20" Replacement Air Filter boasts an upgraded MERV 11 rating (based on ASHRAE Standard 52.2) and is used with the Honeywell Enviracaire F27F1032 Air Cleaner.


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Honeywell FC100A1052 12.5" x 20" Media Air Filter
As Low As: $29.00
Retail: $49.99
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FiltersFast MERV 7 Pleated Filters 6 pk
(FFM7Pleat)

With an initial pressure drop of around .17, these FiltersFast 2" MERV 7 Pleated Panel Filters are comparable to or an upgrade over such other pleat filters as the American Air or AmAir PerfectPleat, the Airguard Xtreme Pleated Panel Filters ...


In Stock! Ships in 14 to 15 business days.
FiltersFast MERV 7 Pleated Filters 6 pk
Our Price: $28.95
Retail: $38.99
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French Scents Air Filter Freshener - Fresh Flowers
(86117)

The French Scents Air Filter Freshener (86117 Fresh Flowers scent) is a whole home air freshener packet that is easily attached to any air filter to provide scented air throughout your entire home, business, or other indoor area.


In Stock! Ships in 9 to 10 business days.
French Scents Air Filter Freshener - Fresh Flowers
Our Price: $3.99
Retail: $4.99
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Filters Fast - Furnace Filters

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