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All Filters : All Filters

Air Filters


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AC Filters
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Air Filter FAQ

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.

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.

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


1" Air Filters Merv 13 - Case of 6 Filters (Best)
(FFM1361)

Filters Fast MERV 13 Air Filter effectively reduces pollen, dust, pet dander, mold spores, dust mites and other allergens from indoor air. Filters Fast Merv 13 furnace filters, AC filters now available.


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1" Air Filters Merv 13 - Case of 6 Filters (Best)
Our Price: $54.95
Retail: $69.99
You Save 21%!

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1" Air Filters Merv 11 -Case of 6 Filters (Better)
(FFM11 6pk)

Filters Fast Air Filters are an economical alternative if you're looking for a quality air filter, furnace filter without paying a premium price! Filters Fast Air Filters, furnace filters, AC filters come in a variety of sizes and are a cost..


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1" Air Filters Merv 11 -Case of 6 Filters (Better)
Our Price: $44.95
Retail: $69.99
You Save 36%!

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1" Air Filters Merv 8 - Case of 6 Filters (Good)
(FFM8 6pk)

Filters Fast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! Filters Fast Air Filters come in a variety of sizes and are a cost effective upgrade from simple fiberglass or ...


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1" Air Filters Merv 8 - Case of 6 Filters (Good)
Our Price: $36.99
Retail: $49.99
You Save 26%!

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3-Pack Trion Air Bear Supreme 2000 Filters 20x25x5
(259112-102 3pk)

The Trion 259112-102 replacement Air Bear Supreme 2000 whole house 3-pack air filter is rated MERV 11 and captures 90% of particles between 3 to 10 microns.


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3-Pack Trion Air Bear Supreme 2000 Filters 20x25x5
Our Price: $59.77
Retail: $99.99
You Save 40%!

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Aprilaire 201 Replacement Air Filter 2200, 2250
(Aprilaire 201)

The Aprilaire 201 replacement high-efficiency filter helps makes household air easier to breathe.


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Aprilaire 201 Replacement Air Filter 2200, 2250
As Low As: $23.99
Retail: $49.99
You Save 52%!

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Aprilaire 413 Filter Media Replacement 2410, 4400
(Aprilaire 413)

The Aprilaire 413 replacement air filter media gives users the best possible indoor air purification performance.


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Aprilaire 413 Filter Media Replacement 2410, 4400
As Low As: $34.95
Retail: $49.99
You Save 30%!

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Filters Fast Custom Size Air Filters
(FFCUSTAIR)

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


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Filters Fast Custom Size Air Filters
Our Price: $52.99
Retail: $59.99
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Aprilaire 2400 Replacement Air Filter Media
(Aprilaire 401)

This genuine Spacegard Aprilaire 2400 Filter Media Replacement, also known as the Aprilaire 401 Filter, is the replacement filter used in the Spacegard Aprilaire 2400 Air Cleaner. The Aprilaire 401 Air Filter / Aprilaire 2400 Replacement Filter is a


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Aprilaire 2400 Replacement Air Filter Media
As Low As: $23.89
Retail: $49.99
You Save 52%!

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Filtrete Ultra Allergen Air Filter - 1500 (Purple)
(Ultra Allergen)

The Filtrete Ultra Allergen Air Filter boasts a Filtrete 1500 MPR rating and is one of the best-performing furnace filters on the market. Not only will the Ultra Allergen Filter use its electrostatically charged fibers to attract and


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Filtrete Ultra Allergen Air Filter - 1500 (Purple)
Our Price: $19.99
Retail: $39.99
You Save 50%!

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Trion Air Bear Replacement Filter 20x25x5 - 3-pack
(255649-102 3pack)

Help keep air conditioning equipment working efficiently and the air you breathe clean with the Trion 255649-102 replacement Air Bear whole-house filter.


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Trion Air Bear Replacement Filter 20x25x5 - 3-pack
Our Price: $58.99
Retail: $75.00
You Save 21%!

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Aprilaire 501 Replacement Filter For Model 5001
(Aprilaire 501)

This genuine Spacegard Aprilaire 5000 Filter Media Replacement, also known as the Aprilaire 501 Filter, is the replacement filter used in the Spacegard Aprilaire 5000 Air Cleaner. The Aprilaire 501 Air Filter / Aprilaire 5000 Replacement Filter is a


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Aprilaire 501 Replacement Filter For Model 5001
As Low As: $31.90
Retail: $49.99
You Save 36%!

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Filters Fast 4-Inch Air Filters MERV 11 - 3-pack
(FF4M11)

Filters Fast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! Filters Fast Air Filters come in a variety of sizes and are a cost effective upgrade.


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Filters Fast 4-Inch Air Filters MERV 11 - 3-pack
Our Price: $43.90
Retail: $59.99
You Save 27%!

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3M Filtrete FAPF02 Compatible Air Purifier Filter
(FFFAPF02)

The Filters Fast Filtrete FFFAPF02 Compatible Air Filter is a compatible replacement filter to 3M Filtrete's FAPF02 Air Filter and as such is a replacement filter for Filtrete's Ultra Clean Air Purifier model FAP02-RS.


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3M Filtrete FAPF02 Compatible Air Purifier Filter
As Low As: $13.95
Retail: $16.95
You Save 18%!

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Filters Fast MERV 13 4" Furnace Filter - 3-Pack
(FFM136)

Filters Fast 4-inch Air Filters (FFM136) have a MERV 13 rating and are useful in a variety of settings, including homes, offices, and industrial sites. The MERV (Minimum Efficiency Reporting value) rating explains the efficiency of your filter, so a


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Filters Fast MERV 13 4" Furnace Filter - 3-Pack
Our Price: $59.90
Retail: $89.99
You Save 33%!

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Honeywell FC100A1011 20"x20" Media AC Filter
(FC100A1011)

The Honeywell FC100A1011 20"x20" Media AC Filter is a high efficiency Media Air Filter that can be used in Honeywell 20 x 20 Air Cleaners. Genuine Honeywell Part.


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Honeywell FC100A1011 20"x20" Media AC Filter
As Low As: $24.99
Retail: $32.00
You Save 22%!

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3M Filtrete Ultra Allergen Home Air Filters 6-PACK
(Purple 6-PACK)

The 3M Filtrete Ultra Allergen Air Filter is the #1 Performance Filter on the market -- outperforming all other 1" AC Filters available! Not only will the Ultra Allergen use electrostatically charged fibers to attract & retain micro-particles it

Free shipping within the continental United States!

In stock! Ships in 1 business day.
3M Filtrete Ultra Allergen Home Air Filters 6-PACK
Our Price: $115.99
Retail: $149.99
You Save 23%!

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Filtrete Ultimate Allergen Filter (Deep Blue) 6-PK
(Ultimate Allergen 6pack)

The Ultimate Allergen Reduction Air Filter boasts a 1900 Microparticle Performance Rating (MPR), which represents the effectiveness of a filter at capturing the smallest airborne particles measured in the industry standard test.

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Filtrete Ultimate Allergen Filter (Deep Blue) 6-PK
Our Price: $119.99
Retail: $124.99
You Save 4%!

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Lennox X6673 MERV 11 Filter Replacement-20x25x5
(X6673)

This Lennox X6673 MERV 11 Furnace Filter Replacement is an efficient alternative to one-inch filters. This Lennox Air Filter Media is a suitable replacement for Air Cleaners that accept a 20X25X5 filter media.


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Lennox X6673 MERV 11 Filter Replacement-20x25x5
Our Price: $29.00
Retail: $75.65
You Save 62%!

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Filters Fast MERV 8- 2" Furnace Air Filters 6-PACK
(FFM86)

Upgrade your 1" air filter with our new 2" MERV 8 air filters. Like our 1" MERV 8 filters, these 2" furnace filters will reduce dust, pollen, pet dander and other contaminants from your air. By doing so, you will help eliminate allergy & sinus issues


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Filters Fast MERV 8- 2" Furnace Air Filters 6-PACK
Our Price: $52.99
Retail: $69.99
You Save 24%!

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Honeywell FC100A1037 Replacement Air Filter- 20X25
(FC100A1037)

The Honeywell 20X25 Air Filter Replacement is a MERV 10 high efficiency media air cleaner that can be used in all compatible size air ducts plus Honeywell cleaners that require a 20"W x 25"L x 5"D filter. It will also fit the following Honeywell Med


In stock! Ships in 1 business day.
Honeywell FC100A1037 Replacement Air Filter- 20X25
Our Price: $31.99
Retail: $34.99
You Save 9%!

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Honeywell FC100A1029 Media Furnace Filter- 16 x 25
(FC100A1029)

Honeywell FC100A1029 16"x25" Media AC Filter can be used with Honeywell 16 x 25 Air Cleaners including the F100 and F150 Series. Genuine Honeywell Part.


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Honeywell FC100A1029 Media Furnace Filter- 16 x 25
As Low As: $34.00
Retail: $37.00
You Save 8%!

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Filters Fast 4-inch MERV 8 Air Filters, 3-pack
(FF4M8)

These Filters Fast Merv 8 4" air filters are compatible with top name brand AC filters such as Aprilaire, Space-Gard, Trion Air Bear and Honeywell. Sizes are 20x25x4, 16x25x4, and 20x20x4.


In Stock! Ships in 1 to 2 business days.
Filters Fast 4-inch MERV 8 Air Filters, 3-pack
Our Price: $35.90
Retail: $49.99
You Save 28%!

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Holmes HWF100 Humidifier Replacement Filter 3-pack
(HWF100)

Holmes, Harmony Humidifier HWF100 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HM630, HM729, HM4600, HM6000, HM6000RC, HM6005, HM6600, HM7204, HM7305, HM7305RC, HM7306, BCM645, BCM5520RC, and more...


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Holmes HWF100 Humidifier Replacement Filter 3-pack
Our Price: $14.00
Retail: $17.00
You Save 18%!

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Replacement Filter for LG ADQ73214402
(EFF-9001A)

The EcoAqua Air Filter EAF-9001A is a replacement refrigerator air filter that replaces LG model ADQ73214402 and ADQ73214404. This air filter is designed to clean the air of impurities and odors.


In stock! Ships in 1 business day.
Replacement Filter for LG ADQ73214402
Our Price: $7.99
Retail: $14.99
You Save 47%!

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Filtrete Ultimate Allergen Air Filter (Deep Blue)
(Ultimate Allergen)

The Ultimate Allergen Reduction Air Filter boasts a 1900 Microparticle Performance Rating (MPR), which represents the effectiveness of a filter at capturing the smallest airborne particles measured in the industry standard test.


In stock! Ships in 1 business day.
Filtrete Ultimate Allergen Air Filter (Deep Blue)
Our Price: $19.99
Retail: $29.99
You Save 33%!

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Filters Fast - Air Filters

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