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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


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

Free shipping within the continental United States!

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Blueair 500/600 Series SmokeStop Filters - 3 Pack
Our Price: $149.95
Retail: $159.99
You Save 6%!

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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
Our Price: $6.99
Retail: $9.99
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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
You Save 43%!

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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
You Save 17%!

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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
You Save 17%!

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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


Discontinued Product Read Description.
Blueair 400 Series Particle Filter Replacement
Our Price: $59.95
Retail: $69.99
You Save 14%!

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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

Free shipping within the continental United States!

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Blueair 400 Series SmokeStop Filter Replacement
Our Price: $119.95
Retail: $129.99
You Save 8%!

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French Scents Air Filter Freshener French Vanilla
(85914)

The French Scents Air Filter Freshener (85914 French Vanilla 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. This French Sce


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French Scents Air Filter Freshener French Vanilla
Our Price: $2.99
Retail: $3.99
You Save 25%!

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French Scents Air Filter Freshener - Cinnamon
(85897)

The French Scents Air Filter Freshener (85897 Cinnamon 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. This French Scents wh


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French Scents Air Filter Freshener - Cinnamon
Our Price: $2.99
Retail: $3.99
You Save 25%!

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French Scents Air Filter Freshener - Fresh Berries
(86118)

The French Scents Air Filter Freshener (86118 Fresh Berries 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. This French Scen


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French Scents Air Filter Freshener - Fresh Berries
Our Price: $3.99
Retail: $4.99
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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".


Discontinued Product Read Description.
Holmes HAPF35 HEPA Filter Replacement (HAPF35CS)
Our Price: $29.99
Retail: $34.99
You Save 14%!

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Kitchen/Bath Vent Filter Kit
(VC-K)

The Kitchen/Bath Vent Filter Kit is an easy-to-install vent filter that absorbs unpleasant smoke, cooking and musty odors lurking in your kitchen or bathroom.


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Kitchen/Bath Vent Filter Kit
Our Price: $4.99
Retail: $7.99
You Save 38%!

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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.


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Hunter 30944 QuietFlo HEPA Purifier Filter
Our Price: $39.99
Retail: $64.99
You Save 38%!

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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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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
You Save 2%!

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Filtrete Ultra Clean Air Purifier (Small Rooms)
(FAP02-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!

Discontinued Product Read Description.
Filtrete Ultra Clean Air Purifier (Small Rooms)
Our Price: $110.24
Retail: $199.99
You Save 45%!

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Holmes, FitRite HAPF24 HEPA Filter, 9000440
(HAPF24)

The Holmes, FitRite HAPF24 HEPA Filter is the main filter used in Holmes models HAP245, HAP250, HAP2504, and HAP251. Also known as part number 9000440 and HAPF24CS.


Discontinued Product Read Description.
Holmes, FitRite HAPF24 HEPA Filter, 9000440
Our Price: $26.99
Retail: $29.99
You Save 10%!

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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.


Discontinued Product Read Description.
3M Filtrete 4 Inch Allergen Reduction Filter
As Low As: $60.32
Retail: $69.99
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Plane Clean Air Replacement Filter
(PCA Replacement)

The Plane Clean Air Replacement Filter is a necessity for the frequent flyer that uses the Plane Clean Air Filter Attachments. Includes 1 filter and 2 adhesive gaskets.


Discontinued Product Read Description.
Plane Clean Air Replacement Filter
Our Price: $5.99
Retail: $6.95
You Save 14%!

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Honeywell Replacement HEPA Filter, 20500
(20500)

The Honeywell 20500 Replacement HEPA Filter fits Honeywell models 10500 (EV-10), 17000, and 17005. Genuine Honeywell part.


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Honeywell Replacement HEPA Filter, 20500
Our Price: $59.00
Retail: $60.00
You Save 2%!

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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

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

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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.

Free shipping within the continental United States!

Discontinued Product Read Description.
3M Filtrete 4 Inch Allergen Media Filter 4-pack
Our Price: $128.00
Retail: $146.00
You Save 12%!

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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


Discontinued Product Read Description.
GeneralAire FP1625X5 MERV 8 AC Filter Media
Our Price: $19.99
Retail: $29.99
You Save 33%!

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GeneralAire FP1625HW MERV 8 AC Filter Media
(4362)

The GeneralAire FP1625HW MERV 8 AC Filter Media is a replacement air filter for the Honeywell F100F2002 and F100F1012 model air cleaners. The GeneralAire FP1625HW filter media replaces the Honeywell FC100A1029 and features a MERV 8 rating for captur


Discontinued Product Read Description.
GeneralAire FP1625HW MERV 8 AC Filter Media
Our Price: $19.99
Retail: $29.99
You Save 33%!

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Filters Fast FC100A1011 Compatible MERV 8 2-Pack
(FFCOK20205HON OKGM)

The Filters Fast FC100A1011 is a 20x20x5 filter that is a compatible version of the Honeywell FC100A1011. This 20x20x5 MERV 8 filter will keep airborne pollutants and contaminants out of your homes air. Filters Fast air and furnace filters provide


Discontinued Product Read Description.
Filters Fast FC100A1011 Compatible MERV 8 2-Pack
Our Price: $39.99
Retail: $94.99
You Save 58%!

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