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Find Replacement Air Filters Fast & Easy!

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.


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Air Filters product list


Filters Fast Odor Killer Air Filter, 12-pack
(FFOKM8)

The Filters Fast Odor Killer is a MERV 8 two-stage carbon blended filter designed to "kill" odors such as cigarette smoke, pet odors, irritating gases, cooking odors and other bad odors that might be affecting your indoor air quality.


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Filters Fast Odor Killer Air Filter, 12-pack
Our Price: $99.00
Retail: $100.00
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Honeywell Replacement HEPA Filter, 28725
(28725)

The Honeywell 28725 Replacement HEPA Filter fits Honeywell models 17450 and 43300. Genuine Honeywell Part.


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Honeywell Replacement HEPA Filter, 28725
Our Price: $67.99
Retail: $110.00
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Bionaire Everfesh Air Filter - Bionaire APF20
(APF20)

The Bionaire APF20 Filter is the washable pre-filter for the Bionaire BAP336-MU Everfresh Air Exchange System. The Bionaire Everfresh Air Exchange System is an easy-to-install window unit that cycles in clean, fresh air, while cycling out undesirab


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Bionaire Everfesh Air Filter - Bionaire APF20
Our Price: $3.99
Retail: $5.00
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Filtrete Advanced Allergen (Deep Blue) 6-pack
(Advanced Allergen 6pack)

The Advanced Allergen Air Filter is the newest, most advanced high-performance filter from Filtrete. No Competitor's #1 Filter Performs Better! It even out performs the Filtrete Ultra Allergen--previously the #1 Performance Filter on the Market.

Free shipping within the continental United States!

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Filtrete Advanced Allergen (Deep Blue) 6-pack
Our Price: $110.00
Retail: $126.00
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Holmes HAPF58 HEPA Filter
(HAPF58)

The Holmes HAPF58 HEPA Filter is designed to fit Holmes HAP580 Air Filter and trap microscopic allergens and dust. Guaranteed HEPA filter efficiency over 99.97 % at 0.3 microns.

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Holmes HAPF58 HEPA Filter
Our Price: $123.99
Retail: $130.19
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Filtrete Custom Size Air Filter 6-Pack
(Custom Filtrete)

Can't find the size air filter you need? We can now provide custom size air filters to fit your needs! Custom sizes available in the Ultra Allergen Series and are subject to requirements. To view these requirements please click view details...

Free shipping within the continental United States!

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Filtrete Custom Size Air Filter 6-Pack
Our Price: $186.81
Retail: $196.15
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Filtrete FAP04-RC Ultra-Slim Air Purifier
(FAP04-RC)

The Filtrete FAP04-RC Ultra-Slim Air Purifier is only 4 inches thick so it can fit virtually anywhere in your home or office where cleaner air is needed! Its sleek design and features make this a desirable upgrade those looking to improve indoor air

Free shipping within the continental United States!

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Filtrete FAP04-RC Ultra-Slim Air Purifier
Our Price: $189.00
Retail: $199.99
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Honeywell Replacement HEPA Filter, 29500
(29500)

The Honeywell 29500 Replacement HEPA Filter fits Honeywell models 50300, 53000 Series, 50311, 64500, and Kenmore model 83163. Genuine Honeywell Part.


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Honeywell Replacement HEPA Filter, 29500
As Low As: $91.00
Retail: $143.76
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APF3, 9000498 Washable Foam Pre-Filter, 2pack
(9000498)

The Holmes APF3 has been discontinued with no replacement. If you are interested in purchasing a new air purifier, consider the Filtrete Ultra Clean Air Purifier for large or small rooms.


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APF3, 9000498 Washable Foam Pre-Filter, 2pack
Our Price: $4.99
Retail: $5.99
You Save 17%!

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Whirlpool Whispure 1183050 HEPA Filter
(1183050)

This product, 1183050, has been discontinued. If you have the Whirlpool Model AP150 or AP15030 you will need to purchase filter 1183051.


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Whirlpool Whispure 1183050 HEPA Filter
Our Price: $58.00
Retail: $65.00
You Save 11%!

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

The Advanced Allergen Air Filter is the newest, most advanced high-performance filter from Filtrete. No Competitor's #1 Filter Performs Better! It even out performs the Filtrete Ultra Allergen--previously the #1 Performance Filter on the Market.


Out of stock
Filtrete Advanced Allergen Air Filter (Deep Blue)
Our Price: $18.99
Retail: $21.00
You Save 10%!

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Plane Clean Air Filter
(Plane Clean Air)

The Plane Clean Air Filter is a filter designed to help you breathe easier while you fly! It attaches easily to the overhead nozzle in most planes and removes 99.5% of all bacteria and viruses from the air stream! View Details for more ....


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Plane Clean Air Filter
Our Price: $19.95
Retail: $20.95
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APF2, 9000496 Washable Foam Pre-Filter 2-pack
(APF2)

The Holmes APF2 has been discontinued with no replacement. If you are interested in purchasing a new air purifier, consider the Filtrete Ultra Clean Air Purifier for large or small rooms.


Out of stock
APF2, 9000496 Washable Foam Pre-Filter 2-pack
Our Price: $4.99
Retail: $5.99
You Save 17%!

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Filtrete Ultra Clean Air Purifier (Large Rooms)
(FAP03-RS)

The Filtrete Ultra Clean Air Purifier is "The Smart Way to Clean Your Air." More effective than a HEPA unit & 99.9% effective at capturing airborne allergens, this product is a must have for people concerned with the quality of their indoor air.

Free shipping within the continental United States!

Out of stock
Filtrete Ultra Clean Air Purifier (Large Rooms)
Our Price: $167.78
Retail: $249.99
You Save 33%!

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Holmes HAP243 Table Top Hepa Air Purifier
(HAP243)

The Holmes HAPF243 Table Top Hepa Air Purifier helps remove allergens and airborne particles from your indoor air, while reducing unpleasant odors. This table-top purifier is certified for rooms up to 10' x 11' in size.


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Holmes HAP243 Table Top Hepa Air Purifier
Our Price: $61.49
Retail: $78.00
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Holmes HAPF56, 9000489 Air Purifier Filter
(HAPF56)

The Holmes HAPF56, 9000489 Air Purifier Filter is the replacement filter for the Holmes HAP560, HAP-560, HAP561, HAP-561, HAP570, HAP-570, HAP5604, HAP-5604, WAP5600 and WAP-5600.


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Holmes HAPF56, 9000489 Air Purifier Filter
Our Price: $89.98
Retail: $90.98
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BlueAir 14x20x1 High Efficiency Air Filter Kit
(BCST1420)

The BlueAir BCST1420 contains the following: (2) 14 x 20 x 1 filters MX2 particle charger Automated filter check timer The BlueAir 14x20x1 High Efficiency Air Filter Kit turns your air conditioning or heating system into a sophisticated, hig

Free shipping within the continental United States!

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BlueAir 14x20x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
You Save 25%!

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BlueAir 20x20x1 High Efficiency Air Filter Kit
(BCST2020)

The BlueAir 20x20x1 High Efficiency Air Filter Kit includes two replacement air filters, the MX2 Particle Charger, and an Automated Filter Check Timer. This BlueAir filter kit converts your existing central air system into a high efficiency air puri

Free shipping within the continental United States!

Out of stock
BlueAir 20x20x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
You Save 25%!

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BlueAir 20x25x1 High Efficiency Air-Furnace Filter
(BCST2025)

The BlueAir 20x25x1 High Efficiency Air-Furnace Filter is a BlueAir filter kit that includes two replacement air filters, the MX2 Particle Charger, and an Automated Filter Check Timer that will convert your existing central air system into a high ef

Free shipping within the continental United States!

Out of stock
BlueAir 20x25x1 High Efficiency Air-Furnace Filter
Our Price: $149.95
Retail: $199.99
You Save 25%!

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Honeywell F100F2002 16x25 Whole House Air Cleaner
(F100F2002)

The Honeywell F100F2002 16x25 Whole House Air Cleaner uses a high efficiency filter that captures airborne particles in the air circulated through the unit, as small as 0.3 microns.

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Honeywell F100F2002 16x25 Whole House Air Cleaner
Our Price: $113.59
Retail: $114.99
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Honeywell F100F2036 20x20 Whole Home Air Purifier
(F100F2036)

The Honeywell F100F2036 20x20 Whole Home Air Purifier uses a 4-inch extended media that makes replacement quick and easy.


In Stock! Ships in 10 to 11 business days.
Honeywell F100F2036 20x20 Whole Home Air Purifier
Our Price: $87.99
Retail: $89.99
You Save 2%!

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Honeywell F100F2010 20x25 Media Air Cleaner
(F100F2010)

The Honeywell F100F2010 20x25 Media Air Cleaner uses a 4-inch extended media that makes replacement quick and easy.


In Stock! Ships in 10 to 11 business days.
Honeywell F100F2010 20x25 Media Air Cleaner
Our Price: $98.86
Retail: $104.99
You Save 6%!

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Honeywell F100F2044 25x20 Whole House Air Cleaner
(F100F2044)

The Honeywell F100F2044 25x20 Whole House Air Cleaner does not require electrical connections and mounts in the return air duct in any position.

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Honeywell F100F2044 25x20 Whole House Air Cleaner
Our Price: $121.69
Retail: $134.99
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Honeywell F100F2051 25x22 Whole Home Air Purifier
(F100F2051)

The Honeywell F100F2051 25x22 Air Purifier System is applicable to all gas, oil and electric forced air furnaces and to compressor cooling up to 5 tons.


In Stock! Ships in 10 to 11 business days.
Honeywell F100F2051 25x22 Whole Home Air Purifier
Our Price: $98.99
Retail: $99.99
You Save 1%!

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Honeywell F300E1001 16x20 Electronic Air Cleaner
(F300E1001)

The Honeywell F300E1001 16x20 Electronic Air Cleaner optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Honeywell F300E1001 16x20 Electronic Air Cleaner
Our Price: $499.99
Retail: $599.99
You Save 17%!

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Filters Fast - Air Filters

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