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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


Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
(FC2400A1005)

The Honeywell FC2400A1005 is a compatible AC filter for the Aprilaire and Space Gard 2400 (filter model 401) and is also used in Research Products cabinet models 2200, 2250 and 2400. This filter boasts a MERV 10 rating.


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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
Our Price: $537.60
Retail: $588.24
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Crane Humidifier Cleaner and Descaler - 8 Ounces 6-Pack
(HS-1933)

This 8 ounce bottle of Crane Humidifier Cleaner and Descaler (HS-1933) is a liquid descaler and cleaner which removes lime, calcium, and similar types of mineral scale from humidifiers, evaporators, vaporizers, and other similar units. It also contr


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Crane Humidifier Cleaner and Descaler - 8 Ounces 6-Pack
Our Price: $109.08
Retail: $114.53
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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


Discontinued Product Read Description.
Crane Drop Shape Humidifier Filter Replacement
Our Price: $17.99
Retail: $18.89
You Save 5%!

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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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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
You Save 30%!

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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
You Save 12%!

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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


Discontinued Product Read Description.
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

Free shipping within the continental United States!

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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!

Discontinued Product Read Description.
Blueair 400 Series SmokeStop Filter Replacement
Our Price: $119.95
Retail: $129.99
You Save 8%!

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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


Discontinued Product Read Description.
Blueair 500/600 Series Particle Filters - 3 Pack
Our Price: $79.95
Retail: $89.95
You Save 11%!

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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

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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French Scents Air Filter Freshener Mountain Breeze
(42068)

The French Scents Air Filter Freshener (42068 Mountain Breeze 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 Sc


Discontinued Product Read Description.
French Scents Air Filter Freshener Mountain Breeze
Our Price: $1.99
Retail: $3.99
You Save 50%!

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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


Discontinued Product Read Description.
French Scents Air Filter Freshener - Fresh Berries
Our Price: $3.99
Retail: $4.99
You Save 20%!

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French Scents Air Filter Freshener - Marine Scent
(86195)

The French Scents Air Filter Freshener (86195 Marine 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.


Discontinued Product Read Description.
French Scents Air Filter Freshener - Marine Scent
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


Discontinued Product Read Description.
French Scents Air Filter Freshener - Cinnamon
Our Price: $2.99
Retail: $3.99
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French Scents Air Filter Freshener Gardenia Scent
(86193)

The French Scents Air Filter Freshener (86193 Gardenia 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


Discontinued Product Read Description.
French Scents Air Filter Freshener Gardenia Scent
Our Price: $2.99
Retail: $3.99
You Save 25%!

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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


Discontinued Product Read Description.
French Scents Air Filter Freshener French Vanilla
Our Price: $2.99
Retail: $3.99
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French Scents Air Filter Freshener - Tropical Bay
(43044)

The French Scents Air Filter Freshener (43044 Tropical Bay 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.


Discontinued Product Read Description.
French Scents Air Filter Freshener - Tropical Bay
Our Price: $2.49
Retail: $3.99
You Save 38%!

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French Scents Air Filter Freshener - Pine Woods
(86230)

The French Scents Air Filter Freshener (86230 Pine Woods 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.


Discontinued Product Read Description.
French Scents Air Filter Freshener - Pine Woods
Our Price: $2.99
Retail: $3.99
You Save 25%!

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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
Our Price: $3.99
Retail: $4.99
You Save 20%!

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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


Discontinued Product Read Description.
3M Filtrete Window Air Conditioner Filter 15x24
Our Price: $6.99
Retail: $19.99
You Save 65%!

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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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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.


Discontinued Product Read Description.
Hunter Permalife 30967 Replacement Air Filter
Our Price: $83.99
Retail: $89.99
You Save 7%!

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3M Filtrete FAPF00C Filters for FAP00-RS
(FAPF00C)

3M Filtrete FAPF00C-4 Air Filter replacement for the 3M Filtrete Ultra Quiet Air Purifier (FAP00-RS) which is made for small rooms. - P-3M-Filtrete-FAP00-RS-Air-Purifier-Kit.asp These 3M Filtrete air filter replacements use a co


Discontinued Product Read Description.
3M Filtrete FAPF00C Filters for FAP00-RS
Our Price: $24.54
Retail: $24.99
You Save 2%!

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Filters Fast - Air Filters

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