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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


Whirlpool Air Purifier Whispure 250 (Medium Room)
(AP25030K)

The Whirlpool Whispure 250 (AP25030K) is a home air purifier which filters the dust, dander, pollen, mold spores, smoke, fabric fibers, allergens, and other contaminants in your air. The Whirlpool Whispure 250 air purifier features a true HEPA air pu

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Special Order. Ships in 7 days.
Whirlpool Air Purifier Whispure 250 (Medium Room)
Our Price: $198.99
Retail: $229.00
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Whirlpool Air Purifier Whispure 450 (Large Room)
(AP45030K)

The Whirlpool Whispure 450 (AP45030K) is a home air purifier which filters the dust, dander, pollen, mold spores, smoke, fabric fibers, allergens, and other contaminants in your air. The Whirlpool Whispure 450 air purifier features a True HEPA air pu

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Whirlpool Air Purifier Whispure 450 (Large Room)
Our Price: $249.99
Retail: $289.00
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Zander 2010XP Filter Replacement Element
(2010XP)

The Zander 2010XP Filter Element Replacement is a coalescent filter for your air compressor filter. This Zander filter works with your G9 Air Compressor housing. This air compressor filter features a stainless steel expanded metal support with plast

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Special Order. Ships in 16 days.
Zander 2010XP Filter Replacement Element
Our Price: $175.15
Retail: $200.16
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Hunter 30960 QuietFlo HEPA Purifier Filter
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $68.25
Retail: $79.99
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Honeywell F300E1035 20x25 Electronic Air Cleaner
(F300E1035)

The Honeywell F300E1035 20x25 Electronic Air Cleaner operates with all gas, oil and electric forced warm air furnaces and air conditioning systems.

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Honeywell F300E1035 20x25 Electronic Air Cleaner
Our Price: $639.99
Retail: $699.99
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Honeywell HCM-800P Humidifier
(HCM800-P)

The Honeywell HCM-800 PermaFresh Cool Moisture Humidifier helps relieve discomfort caused by dry air with soothing invisible moisture.


Discontinued Product Read Description.
Honeywell HCM-800P Humidifier
Our Price: $79.99
Retail: $89.99
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Honeywell 203373 Electronic Pre-Filter - 20x20
(203373)

The Honeywell 203373 Electronic Pre-Filter - 20x20 is a replacement pre-filter for 20" x 20" Honeywell model F50A or F50E air cleaner models. This electronic air cleaner pre-filter measures 10" x 19" x 3/4" and helps capture larger particulates in y


Discontinued Product Read Description.
Honeywell 203373 Electronic Pre-Filter - 20x20
Our Price: $24.89
Retail: $29.99
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Honeywell F200E1037 20x25 Whole-Home Air Cleaner
(F200E1037)

The Honeywell F200E1037 20x25 Whole-Home Air Cleaner does not require maintenance except for periodic battery changes and media filter replacement.

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Discontinued Product Read Description.
Honeywell F200E1037 20x25 Whole-Home Air Cleaner
Our Price: $229.99
Retail: $299.99
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Filters Fast MERV 7 Pleated Filters 6 pk
(FFM7Pleat)

With an initial pressure drop of around .17, these Filters Fast 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 ...


Discontinued Product Read Description.
Filters Fast MERV 7 Pleated Filters 6 pk
Our Price: $27.95
Retail: $39.00
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3M Filtrete FAPF00 Air Filter for FAP00 Purifier
(FAPF00)

The 3M Filtrete FAPF00 Air Filter is the replacement air filter for the 3M Filtrete Ultra Quiet Air Purifier (FAP00-RS) for small rooms. This 3M Filtrete Air Filter captures 96% of pollen, mold spores, dust mites, dust, bacteria and particles.


Discontinued Product Read Description.
3M Filtrete FAPF00 Air Filter for FAP00 Purifier
As Low As: $13.50
Retail: $15.99
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Odor Killer Return Grille Air Filter - MERV 8, 5"
(FFRAGGM)

The Odor Killer Return Grille Air Filter eliminates smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air. Since this return grille air filter is 5" deep compared to the standard 1" air filter, its greater surfac


In Stock! Ships in 1 to 2 business days.
Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $28.99
Retail: $45.99
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Holmes HAPF30D Replacement HEPA Filter (2 Pack)
(HAPF30D)

The Holmes HAPF30D Replacement HEPA Filter (2 Pack) removes up to 99% of airborne dust and pollen, in addition to reducing pet dander, smoke and mold spores. Arm and Hammer baking soda is used in the filter to absorb and eliminate household odors.


Discontinued Product Read Description.
Holmes HAPF30D Replacement HEPA Filter (2 Pack)
Our Price: $51.23
Retail: $59.99
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Hunter 30944 QuietFlo HEPA Purifier Filter
(30944)

The Hunter 30944 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


Discontinued Product Read Description.
Hunter 30944 QuietFlo HEPA Purifier Filter
Our Price: $39.99
Retail: $64.99
You Save 38%!

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Hunter 30900 HEPAtech Purifier Filter
(30900)

The Hunter 30900 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns. It fits the HEPAtech 300-30300 and 302-30302 air filters.


Discontinued Product Read Description.
Hunter 30900 HEPAtech Purifier Filter
As Low As: $22.49
Retail: $36.95
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Filters Fast Odor Killer Return Air Grille Filter
(FFRAGOK)

Filters Fast now offers its 5" Return Air Grille Filters with Odor Killer technology, a MERV 8 two-stage carbon blended filter designed to "kill" odors. FFRAGOK.


Discontinued Product Read Description.
Filters Fast Odor Killer Return Air Grille Filter
Our Price: $45.00
Retail: $59.99
You Save 25%!

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Holmes HAPF38 HEPA Filter Replacement (HAPF38CS)
(HAPF38)

The Holmes HAPF38CS HEPA Filter, which fits Holmes air purifier model HAP292, removes airborne allergens and reduces unwanted smells and odors by capturing fine particulates that float in the air.


Discontinued Product Read Description.
Holmes HAPF38 HEPA Filter Replacement (HAPF38CS)
Our Price: $46.99
Retail: $54.99
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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.


Discontinued Product Read Description.
Honeywell Replacement HEPA Filter, 28725
Our Price: $67.99
Retail: $110.00
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Filtrete FAPF04 Air Filter, For Ultra-Slim FAP-04R
(FAPF04)

The Filtrete FAPF04 Air Filter is the replacement air cleaning filter for the Filtrete Ultra Slim Air Purifier FAP04-RC, FAP04. This electrostatically charged filter will attract and retain microparticles that can aggravate allergies and ...


Discontinued Product Read Description.
Filtrete FAPF04 Air Filter, For Ultra-Slim FAP-04R
Our Price: $19.99
Retail: $20.46
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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!

Discontinued Product Read Description.
Filtrete FAP04-RC Ultra-Slim Air Purifier
Our Price: $189.00
Retail: $199.99
You Save 5%!

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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


Discontinued Product Read Description.
Bionaire Everfesh Air Filter - Bionaire APF20
Our Price: $3.99
Retail: $5.00
You Save 20%!

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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.

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Discontinued Product Read Description.
Filtrete Advanced Allergen (Deep Blue) 6-pack
Our Price: $110.00
Retail: $126.00
You Save 13%!

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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.

Free shipping within the continental United States!

Discontinued Product Read Description.
Holmes HAPF58 HEPA Filter
Our Price: $123.99
Retail: $130.19
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Bionaire PERMAtech BAP1500U Air Cleaner
(BAP1500U)

The Bionaire PERMAtech BAP1500UAir Cleaner, part number BAP1500BPF15, is a high-efficiency Ionizing Air Purifier that cleans your air quietly and efficiently without the hassle of filter replacement! The BAP-1500BPF15-U is designed for medium sized

Free shipping within the continental United States!

Discontinued Product Read Description.
Bionaire PERMAtech BAP1500U Air Cleaner
Our Price: $99.99
Retail: $293.00
You Save 66%!

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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.


Discontinued Product Read Description.
Honeywell Replacement HEPA Filter, 29500
As Low As: $91.00
Retail: $143.76
You Save 37%!

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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!

Discontinued Product Read Description.
Filtrete Custom Size Air Filter 6-Pack
Our Price: $186.81
Retail: $196.15
You Save 5%!

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