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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


Filters Fast 15x20x5 MERV 13 Return Grille Filter
(FFRAG13-15205)

The Filters Fast 15x20x5 MERV 13 Return Grille Filter can be used in almost every air cleaner system requiring a 15"x20"x5" media filter cartridge and remove at least 90% of all particles 1.0-10.0 microns.


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Filters Fast 15x20x5 MERV 13 Return Grille Filter
Our Price: $41.99
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Filters Fast 16x24x5 MERV 13 Return Grille Filter
(FFRAG13-16245)

The FiltersFast FFRAG13-16245 fits the following: Any air return that calls for a 16" x 24" filter The Filters Fast 16x24x5 MERV 13 Return Grille Filter removes 90% of particles 1.0 to 10.0 microns from your indoor air. This return grill air f


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Filters Fast 16x24x5 MERV 13 Return Grille Filter
Our Price: $41.99
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Filters Fast 20x24x5 MERV 13 Return Grille Filter
(FFRAG13-20245)

The Filters Fast air furnace filters Merv 13 is a 20x24x5 inch filter for your home. Filters Fast air filters offer the highest quality in air filtration at a more economical price. This Filters Fast air filter features a Merv 13 rating


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Filters Fast 20x24x5 MERV 13 Return Grille Filter
Our Price: $45.99
Retail: $51.99
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Filters Fast 24x30x5 MERV 13 Return Grille Filter
(FFRAG13-24305)

The Filters Fast air furnace filter measures 24x30x5 inches. This filter fits your 1" residential wall or ceiling mount return grill. Although this Filters Fast filter is 5" deep, it fits your standard 1" size 24x30x5 and then extends 4 inches into


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Filters Fast 24x30x5 MERV 13 Return Grille Filter
Our Price: $56.99
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Holmes Foam Air Cleaner Prefilter APF-5 2-Pack
(APF-5)

The Holmes APF-5 fits the following model of air purifier: Holmes HAP-291 The Holmes Foam Air Cleaner Prefilter 2pk APF-5 will remove large particulates from your indoor air. This air purifier replacement filter will extend the life of HEPA an


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Holmes Foam Air Cleaner Prefilter APF-5
Our Price: $15.98

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Holmes Foam Air Cleaner Prefilter APF-3 2-Pack
(APF-3)

The Holmes APF-3 fits the following models of air cleaners: Holmes HAP-245 Holmes HAP-251 Holmes HAP-2452 Holmes HAP-2454 The Holmes Foam Air Cleaner Prefilter 2pk APF-3 is effective at removing large particulates from your indoor air. This


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Holmes Foam Air Cleaner Prefilter APF-3
Our Price: $15.98

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Holmes Foam Air Cleaner Prefilter 2pk APF-2 2-Pack
(APF-2)

The Holmes APF-2 fits the following models of air cleaners: HAP240 HAP244 HAP246 HAP260 HAP260B HAP412G HAP422 HAP422B HAP422G HAP440 HAP2404 HAP2604 HAP2604B HE3001 PPS100 The Holmes Foam Air Cleaner Prefilter 2pk APF-2 will rem


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Holmes Foam Air Cleaner Prefilter 2pk APF-2
Our Price: $27.96

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Hunter Foam Mesh Air Cleaner Prefilter 2pk 744700
(744700)

The Hunter 744700 fits the following models of air cleaners: Hunter 30010 Hunter 30025 Hunter 30040 Hunter 37025 The Hunter Foam Mesh Air Cleaner Prefilter 2pk 744700 is a prefilter made of foam mesh. This Hunter 744700 filter has approxima


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Hunter Foam Mesh Air Cleaner Prefilter 2pk 744700
Our Price: $9.98
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Holmes Foam Air Cleaner Prefilter 2 pack APF-6
(APF-6)

The Holmes APF-6 fits the following model of air purifier: Holmes HAP-292 The Holmes Foam Air Cleaner Prefilter 2pk APF-6 works to clean large particulates from your indoor air. This Holmes foam prefilter will extend the life of HEPA carbon fi


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Holmes Foam Air Cleaner Prefilter 2 pack APF-6
Our Price: $15.98
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Holmes Foam Air Cleaner Prefilter APF-4 2-Pack
(APF-4)

The Holmes APF-4 Foam Air Cleaner Pre-filter (2 Pack) removes particulates and contaminants from the air with Holmes HAP290 & HAP475 Air Purifier systems.


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Holmes Foam Air Cleaner Prefilter APF-4
Our Price: $15.98

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Filters Fast 14x20x5 MERV 11 Return Grille Filter
(FFRAGF-14205)

The Filters Fast FFRAGF-14205 fits the following: Most air returns requiring a 14" x 20" filter This Filters Fast 14x20x5 MERV 11 Return Grille Filter captures particles down to the size of 0.3 microns. This return grille air filter reduces du


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Filters Fast 14x20x5 MERV 11 Return Grille Filter
Our Price: $39.99
Retail: $46.99
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Filters Fast 14x24x5 MERV 11 Return Grille Filter
(FFRAGF-14245)

The Filters Fast 14x24x5 MERV 11 Return Grille Filter is a replacement air filter that is an excellent upgrade over traditional 1 inch air filters used in homes or offices. This Filters Fast air furnace filter is manufactured with a MERV 11 efficien


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Filters Fast 14x24x5 MERV 11 Return Grille Filter
Our Price: $29.99
Retail: $46.99
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Filters Fast 15x20x5 MERV 11 Return Grille Filter
(FFRAGF-15205)

The FiltersFast MERV 11 15 x 20 x 5 Return Grille Filter can be used in most air cleaner systems that require 15"x20"x5" media filters. These FiltersFast filters have deep 5" pleats with more surface area to capture particulates down to 0.3 microns.


Discontinued Product Read Description.
Filters Fast 15x20x5 MERV 11 Return Grille Filter
Our Price: $39.99
Retail: $46.99
You Save 15%!

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Filters Fast 16x24x5 MERV 11 Return Grille Filter
(FFRAGF-16245)

The Filters Fast 16x24x5 MERV 11 Return Grille Filter is a return grill air filter that causes markedly less strain on residential and commercial heating and cooling systems through its 5 inch depth. This MERV 11 filter additionally prevents duct by


Discontinued Product Read Description.
Filters Fast 16x24x5 MERV 11 Return Grille Filter
Our Price: $40.99
Retail: $47.99
You Save 15%!

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Filters Fast 20x24x5 MERV 11 Return Grille Filter
(FFRAGF-20245)

The Filters Fast FFRAGF-20245 fits the following: Most air returns that require a 20" x 24" filter The Filters Fast 20x24x5 MERV 11 Return Grille Filter captures particles down to the size of 0.3 microns. This return grille air filter reduces


Discontinued Product Read Description.
Filters Fast 20x24x5 MERV 11 Return Grille Filter
Our Price: $41.99
Retail: $48.99
You Save 14%!

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Filters Fast 24x30x5 MERV 11 Return Grille Filter
(FFRAGF-24305)

The FiltersFast MERV 11 Return Grille Filter fit most air cleaners requiring 24" x 30" x 5" filters, and efficiently reduce airborne particulates such as dust, pet dander, pollen,dust mites, etc to provide healthier indoor air.


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Filters Fast 24x30x5 MERV 11 Return Grille Filter
Our Price: $52.99
Retail: $59.99
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Holmes Foam Air Cleaner Prefilter APF-7 2-Pack
(APF-7)

The Holmes APF-7 Foam Air Cleaner Prefilter (2 Pack) reduces particles and pollutants from the air with Holmes HAP-300 & Holmes HAP-3004 Air Purifiers.


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Holmes Foam Air Cleaner Prefilter APF-7
Our Price: $17.98

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Holmes Foam Air Cleaner Prefilter 2-pk APF-10 2-Pack
(APF-10)

The Holmes APF10 Foam Air Cleaner Pre-filter (2 Pack) reduces pollutants and particulates from the air with Holmes HAP-245, HAP-250, HAP-251 and HAP-260 Air Purifiers.


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Holmes Foam Air Cleaner Prefilter 2-pk APF-10
Our Price: $19.96

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Bionaire Foam Air Cleaner Prefilter 514 2-Pack
(Bionaire 514)

The Bionaire Foam Air Cleaner Prefilter 2pk 514 is a replacement foam pre-filter for the Bionaire Model BT400, BT500, BT500S, and BT501 Air Cleaners. This Bionaire air filter effectively extends the life of your air purifier's HEPA and carbon filter


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Bionaire Foam Air Cleaner Prefilter 514
Our Price: $11.98

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Bionaire Foam Humidifier Prefilter 326
(Bionaire 326)

The Bionaire Foam Humidifier Prefilter 2pk 326 is a replacement foam prefilter for several Bionaire Model Air Cleaners. This Bionaire air filter measures approximately 5.25" x 7.25" and effectively reduces the larger cluster of airborne particles fr


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Bionaire Foam Humidifier Prefilter 326
Our Price: $3.99
Retail: $4.99
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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
(FFC16265WR OKGM)

The FiltersFast F825-0548 5" Compatible Filter can be used in Emerson Model SST14 Air Cleaners, and all air cleaner systems requiring 16"x26"x5" media filter cartridges. These filters remove harmful airborne contaminants for cleaner indoor air.


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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
Our Price: $54.25
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Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
(FFC162766SG OKGM)

The Filters Fast MERV 8 16x27x6 Air Filter 2-Pack is a pack of replacement air filters that is an upgrade over the Aprilaire Space Gard 2400 AC Filter. This 16" x 27" 6" has a MERV 8 rating for the reduction of airborne pollutants like pollen, dir


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Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
Our Price: $45.00
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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
(FFC21235TRN OKGM)

The Filters Fast 5" Trane Perfect Fit 21x23x5 Compatible FFC21235TRN OKGM is the correct replacement for the following: any air cleaner that requires a 21" x 23" x 5" filter This Filters Fast air filter also replaces Trane Perfect Fit BAYFTAH23


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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
Our Price: $98.00
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FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
(FFC23205TRN OKGM)

The Filters Fast 5" Trane PF BAYFTAH23M Compatible FFC23205TRN OKGM fits the following: any air cleaner that calls for a 20" x 23" x 5" filter This Filters Fast air filter also replaces the Trane Perfect Fit BAYFTAH23M filter. This Trane compa


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FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
Our Price: $66.66
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FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
(FFC26215TRN OKGM)

The Filters Fast 5" Trane PF BAYFTAH26M Compatible FFC26215TRN OKGM fits the following: Any air cleaner that requires a 26" x 21" x 5" filter This Filters Fast air filter is also compatible with the Trane Perfect Fit BAYFTAH26M air filter. Thi


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FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
Our Price: $93.00
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Filters Fast - Air Filters

" Just to express my complete satisfaction with your ordering process and, of course, great pricing. When I need a replacement of refrigerator or HVAC filters, I'll be contacting you again. " - Frank, Corona, CA
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