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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


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.

Free shipping within the continental United States!

Discontinued Product Read Description.
Honeywell F200E1037 20x25 Whole-Home Air Cleaner
Our Price: $229.99
Retail: $299.99
You Save 23%!

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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
You Save 11%!

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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
You Save 17%!

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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.


Discontinued Product Read Description.
Filters Fast Odor Killer Air Filter, 12-pack
Our Price: $99.00
Retail: $100.00
You Save 1%!

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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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Filters Fast Odor Killer Air Filter, 6-pack
(FFOK 6-pack)

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.


Discontinued Product Read Description.
Filters Fast Odor Killer Air Filter, 6-pack
Our Price: $76.67
Retail: $79.99
You Save 4%!

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Filters Fast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a Filters Fast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and Filters Fast now offers this rating in a 5" Return Air Grille application.


Discontinued Product Read Description.
Filters Fast MERV 13 Return Grille Air Filter - 5"
Our Price: $39.99
Retail: $49.99
You Save 20%!

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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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Filters Fast MERV 11 Return Grille Air Filter 5"
(FFRAGF)

The Filters Fast MERV 11 Return Grille Air Filter 5" are a great option for upgrading or replacing the traditional 1-inch air filter found in your home or office. View details to learn more...


Discontinued Product Read Description.
Filters Fast MERV 11 Return Grille Air Filter 5"
Our Price: $29.99
Retail: $39.99
You Save 25%!

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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
You Save 16%!

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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


Discontinued Product Read Description.
Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $28.99
Retail: $45.99
You Save 37%!

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Holmes HAPF30D Comp Single Replacement HEPA Filter
(HAPF30D)

The Holmes HAPF30D compatible single Replacement HEPA Filter removes up to 99% of airborne dust and pollen, in addition to reducing pet dander, smoke and mold spores.


Discontinued Product Read Description.
Holmes HAPF30D Comp Single Replacement HEPA Filter
Our Price: $15.24
Retail: $29.99
You Save 49%!

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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
You Save 39%!

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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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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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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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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!

Discontinued Product Read Description.
Filtrete Ultra Clean Air Purifier (Large Rooms)
Our Price: $167.78
Retail: $249.99
You Save 33%!

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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.


Discontinued Product Read Description.
Honeywell Replacement HEPA Filter, 20500
Our Price: $59.00
Retail: $60.00
You Save 2%!

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Honeywell 24000 Compatible HEPA Filter
(24000)

The Honeywell 24000 Replacement HEPA filter fits Honeywell, Enviracaire models 52500, 63500, 13503, EV-35B, 13520, 13523, 13525, and 13528. Genuine Honeywell part.


Discontinued Product Read Description.
Honeywell 24000 Compatible HEPA Filter
Our Price: $54.99
Retail: $69.99
You Save 21%!

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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.


Discontinued Product Read Description.
Holmes HAP243 Table Top Hepa Air Purifier
Our Price: $61.49
Retail: $78.00
You Save 21%!

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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.


Discontinued Product Read Description.
Holmes HAPF56, 9000489 Air Purifier Filter
Our Price: $89.98
Retail: $90.98
You Save 1%!

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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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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.


Discontinued Product Read Description.
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 ....


Discontinued Product Read Description.
Plane Clean Air Filter
Our Price: $19.95
Retail: $20.95
You Save 5%!

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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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