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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


French Scents Air Filter Freshener Country Cotton
(286042)

The French Scents Air Filter Freshener (286042 Country Cotton 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.


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French Scents Air Filter Freshener Country Cotton
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Retail: $4.99
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Hoover WindTunnel Vacuum Filter - Secondary Micron
(38765019 OEM)

This Hoover WindTunnel Vacuum Filter is a Hoover secondary micron vacuum filter for Hoover WindTunnel vacuums and Hoover Self-Propelled Wind Tunnel vacuum cleaners. Also known by part numbers 38765019 OEM and H-38765019.


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Hoover WindTunnel Vacuum Filter - Secondary Micron
Our Price: $3.99
Retail: $6.99
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Electrolux Air Filter - Cut To Fit
(5303320285)

This Electrolux Air Filter (WCI 5303320285 / FEI 1779) is a universal cut to fit gray foam air filter. It filters dirt, dust, mold, soot, pollen, and other allergens. It is a genuine Electrolux product, though it can also be used with many other bra


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Electrolux Air Filter - Cut To Fit
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Honeywell 28600 HEPA Air Filter Replacement
(28600)

The Honeywell 28600 HEPA Air Filter Replacement is a genuine Honeywell replacement True HEPA Filter for the Honeywell Enviracaire Portable Air Cleaner models 13000 and 63200 as well as all other air cleaners that use a 10" 1/4 height x 10 1/2" inner


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Honeywell 28600 HEPA Air Filter Replacement
Our Price: $80.60
Retail: $91.99
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Blueair 200/300 Series Particle Filter Replacement
(BAF-200/300SPF)

The Blueair 200/300 Series Particle Filter is a replacement particle air filter that traps dirt, dust, pet dander, bacteria, mold spores, dust mites, and other airborne allergens. It also removes odors and gases from the air. These Blueair 200/300 S


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Blueair 200/300 Series Particle Filter Replacement
Our Price: $49.95
Retail: $59.95
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Blueair 200/300 Series Carbon Filter Replacement
(BAF-200SSM)

The Blueair 200/300 Series Carbon Filter is a replacement carbon air filter that primarily removes odors, gases, and smoke from your air. This filter also traps bacteria, dirt, dust, pet dander, mold spores, dust mites and other airborne allergens

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Blueair 200/300 Series Carbon Filter Replacement
Our Price: $99.95
Retail: $119.95
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Blueair 400 Series Particle Filter Replacement
(BAF-400SPF)

The Blueair 400 Series Particle Filter is a replacement particle air filter that traps dirt, dust, pet dander, bacteria, mold spores, dust mites, and other airborne allergens. It also removes odors and gases from the air. These Blueair 400 Series Pa


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Blueair 400 Series Particle Filter Replacement
Our Price: $59.95
Retail: $69.99
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Blueair 400 Series SmokeStop Filter Replacement
(BAF-400SSM)

The Blueair 400 Series SmokeStop Filter is a replacement carbon air filter that removes smoke, gases, and odors from your air, though it also filters dirt, dust, pet dander, bacteria, mold spores, dust mites, and other airborne allergens. These Blue

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Blueair 400 Series SmokeStop Filter Replacement
Our Price: $119.95
Retail: $129.99
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Blueair 500/600 Series Particle Filters - 3 Pack
(BAPF-501)

This is a three pack of Blueair 500/600 Series Particle Filters which trap dirt, dust, pet dander, bacteria, mold spores, dust mites, hair, pollen, and other airborne allergens. They use a combination of Blueair HEPA filtration and activated carbon


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Blueair 500/600 Series Particle Filters - 3 Pack
Our Price: $79.95
Retail: $89.95
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Blueair 500/600 Series SmokeStop Filters - 3 Pack
(BASS-501)

This is a three pack of Blueair 500/600 Series SmokeStop Filters which remove smoke, gases, and odors from your air, though they also filter dirt, dust, pet dander, bacteria, mold spores, dust mites, and other airborne allergens. These Blueair Smoke

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Blueair 500/600 Series SmokeStop Filters - 3 Pack
Our Price: $149.95
Retail: $159.99
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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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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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Whirlpool AP51030K Air Purifier 510 (Large Room)
(AP51030K)

The Whirlpool Whispure 510 (AP51030K) 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 510 air purifier features a True HEPA air p

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Whirlpool AP51030K Air Purifier 510 (Large Room)
Our Price: $299.99
Retail: $375.00
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Crane Drop Shape Humidifier Filter Replacement
(HS-3161)

This Crane Drop Shape Humidifier Filter (HS-3161) is a replacement demineralizing humidifier filter cartridge made specifically for Drop Shape Crane humidifiers. It helps to reduce the build up of white dust mineral deposits in Crane Drop Shape humi


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Crane Drop Shape Humidifier Filter Replacement
Our Price: $17.99
Retail: $18.89
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Hunter Permalife 30967 Replacement Air Filter
(30967)

The Hunter PermaLife 30967 Air Filter is a direct replacement air filter for Hunter PermaLife systems, specifically Hunter PermaLife models 30755, 30756, and 30757.


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Hunter Permalife 30967 Replacement Air Filter
Our Price: $83.99
Retail: $89.99
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Hunter 30963 HEPAtech Filter for 30710
(30963)

The Hunter 30963 HEPAtech Filter Replacement is a replacement air filter for certain Hunter HEPAtech Air Purifier Systems, specifically the Hunter HEPAtech 30710, Hunter HEPAtech 30711, Hunter HEPAtech 30714, and Hunter HEPAtech 30721A.


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Hunter 30963 HEPAtech Filter for 30710
Our Price: $33.95
Retail: $39.95
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3M Filtrete Window Air Conditioner Filter 15x24
(9808)

This 3M Filtrete Window Air Conditioner Filter (9808) is a universal 15" x 24" cut to fit room air conditioner filter replacement. The electrostatically charged fibers of this 3M 9808 air filter more efficiently reduce or remove dirt, dust, soot, po


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3M Filtrete Window Air Conditioner Filter 15x24
Our Price: $6.99
Retail: $19.99
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Holmes HAPF35 HEPA Filter Replacement (HAPF35CS)
(HAPF35)

The Holmes HAPF35 HEPA Filter Replacement fits Holmes air purifier models Holmes HAP290 (Holmes HAP-290) and Holmes HAP475 (Holmes HAP-475). The dimensions of this Holmes HEPA filter replacement are approximately 9 1/4" x 9 7/8" x 1 1/8".


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Holmes HAPF35 HEPA Filter Replacement (HAPF35CS)
Our Price: $29.99
Retail: $34.99
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Lennox 91X26 MERV 8 Pleated Air Filters 4-Pack
(91X26)

The Lennox 91X26 MERV 8 Pleated Air Filters 4-Pack is a Lennox genuine OEM Healthy Climate air filter. These Lennox air filters are pleated and remove particles and bioaerosols as small as 3 microns from your indoor air.


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Lennox 91X26 MERV 8 Pleated Air Filters 4-Pack
Our Price: $29.95
Retail: $38.95
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Holmes HAPF96 Carbon/Odor Purifier PreFilter
(HAPF96)

The Holmes HAPF96 Air Purifier Carbon/Odor PreFilter fits the following Holmes room air cleaners: HAP560 HAP570 HAP5604 WAP5600 This carbon odor filter measures approximately 9 1/2" x 17 1/2". This carbon prefilter helps remove large partic


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Holmes HAPF96 Carbon/Odor Purifier PreFilter
Our Price: $7.66
Retail: $9.99
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Bionaire HAPF30 R Air Purifier HEPA Filter
(Bionaire HAPF30 R)

The Bionaire HAPF30 R Air Purifier HEPA Filter is a replacement HEPA filter for several models of Holmes air purifiers. This carbon pre-filter measures approximately 10" x 4.75" x 1.5" and reduces 99.7% of airborne particles down to 0.3 microns.


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Bionaire HAPF30 R Air Purifier HEPA Filter
Our Price: $19.99
Retail: $20.99
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GeneralAire GA102 MERV 8 Filter Media Cartridge
(4122)

The GeneralAire ventilator filter is rated Merv 8. This ventilator filter cartridge is a genuine GeneralAire part and is also called a GA102.


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GeneralAire GA102 MERV 8 Filter Media Cartridge
Our Price: $29.99
Retail: $30.99
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GeneralAire GA104 MERV 8 Filter Media Cartridge
(4123)

The GeneralAire GA104 MERV 8 Filter Media Cartridge is a replacement air filter for the GeneralAire AC24 and Aprilaire 2140 air cleaner models. This replacement filter media cartridge features a MERV 8 rating for reducing airborne contaminants and p


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GeneralAire GA104 MERV 8 Filter Media Cartridge
Our Price: $19.99
Retail: $29.99
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Essick Air 1301 Mega Purifier Filter Replacement 3-Pack
(1301)

The Essick Air 1301 Mega Purifier Filter Replacement is a replacement air filter for the Bemis by Essick Air 129 900 air cleaner. The Essick Air filter replacement is a high-grade particulate filter that efficiently captures airborne allergens while


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Essick Air 1301 Mega Purifier Filter Replacement 3-Pack
Our Price: $149.85
Retail: $179.97
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GeneralAire FP1625X5 MERV 8 AC Filter Media
(4527)

The GeneralAire FP1625X5 MERV 8 AC Filter Media is a replacement air filter that fits the MAC1400 air cleaner. The GeneralAire FP1625X5 filter improves your indoor air quality by reducing particulates like dust, dander, allergens, and pollen through


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GeneralAire FP1625X5 MERV 8 AC Filter Media
Our Price: $19.99
Retail: $29.99
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