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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


Carrier FILCCCAR0016 Air Purifier Filter
(FILCCCAR0016)

The Carrier FILCCCAR0016 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It fits numerous units including model numbers FILBBCAR0016


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Carrier FILCCCAR0016 Air Purifier Filter
Our Price: $31.99
Retail: $39.99
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GeneralAire HMK500 Filter Replacement Kit 2-Pack 2-Pack
(4610)

The GeneralAire HMK500 is the correct replacement for the following air cleaner: GeneralAire AC500 Whole House HEPA Filtration System.


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GeneralAire HMK500 Filter Replacement Kit 2-Pack
Our Price: $83.98

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FiltersFast Brand Trane 21x23x5 Perfect Fit BAYFTAH23M
(FFC21235TRNM13)

The FiltersFast Brand Trane 21x23x5 Perfect Fit BAYFTAH23M is a compatible version of the genuine Trane Perfect fit 21x23x5 Air Filter.

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FiltersFast Brand Trane 21x23x5 Perfect Fit BAYFTAH23M
Our Price: $90.95
Retail: $140.00
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American Metal OEMRCR0613 Replacement For GE WB02X10733 Microwave Filter
(OEMRCR0613)

This Microwave Filter Replacement (OEMRCR0613) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10733 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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American Metal OEMRCR0613 Replacement For GE WB02X10733 Microwave Filter
Our Price: $15.99
Retail: $19.99
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Lennox X4137 HEPA 20 Carbon PreFilter Replacement
(X4137)

The Lennox X4137 HEPA 20 Carbon PreFilter Replacement is a replacement carbon pre-filter for the Lennox Healthy Climate HEPA 20 Filtration System. This carbon pre-filter is the first stage of the HEPA 20 filtration process.


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Lennox X4137 HEPA 20 Carbon PreFilter Replacement
Our Price: $38.67
Retail: $46.95
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FiltersFast 1" MERV 11 Replacement For Honeywell 14x14x1 MERV 11 6-Pack
(50049536-003)

The Honeywell 14x14x1 MERV 11 Air Filter- TruDRY DR90 is a replacement filter for the Honeywell TrueDry DR90 Dehumidification System. This Honeywell air filter measures 14" x 14" x 1" and has a MERV 11 rating for the reduction of airborne contaminan


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FiltersFast 1" MERV 11 Replacement For Honeywell 14x14x1 MERV 11 6-Pack
Our Price: $53.50

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Lennox Healthy Climate 75X66 Catalyst Insert Assembly
(75X66)

The Lennox 75X66 Metal Mesh Filter is the correct replacement for the following air cleaner: Lennox Pureair PCO-2OC The Lennox Pureair air cleaner is the only air cleaner made that destroys odors and VOC's, and has a MERV rating of MERV 16.

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Lennox Healthy Climate 75X66 Catalyst Insert Assembly
Our Price: $154.00
Retail: $199.99
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GeneralAire 4365 Comp For General Aire 16x20 MERV10 Filter
(4350)

The GeneralAire GA100A03 16x20 MERV10 Filter Media is used on Honeywell F25 Series, F35 Series, F100 Series & F150 Series Media Style Air Cleaners, as well as Honeywell FC100A1003, F100F1004, F100B1008, F100F2028, and F150E1000 Air Cleaners.


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GeneralAire 4365 Comp For General Aire 16x20 MERV10 Filter
Our Price: $34.99

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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N43)

The Lennox 98N43 MERV 8 Pleated Furnace Filters 4-Pack is the correct replacement for all furnaces that require a 20x20x1 filter. These Lennox Healthy Climate filters remove particles and bioaerosols as small as 3 microns


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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $95.00

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GeneralAire FP2025X5 MERV 8 AC Filter Media
(4526)

The GeneralAire FP2025X5 MERV 8 AC Filter Media is a flatpac expandable replacement filter with a MERV 8 rating. This expandable, high capacity, depth loading fiberglass filter that allows for reduced and efficient storage.


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GeneralAire FP2025X5 MERV 8 AC Filter Media
Our Price: $21.99
Retail: $29.99
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Honeywell 209894 Replacement 16x20 Air Filter
(209894 R)

The Honeywell 209894 Replacement 16x20 Air Filter is a replacement furnace air filter for use with Honeywell 16 x 20 Air Cleaners, including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and other models. This Honeywell furnace filter, a


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Honeywell 209894 Replacement 16x20 Air Filter
As Low As: $30.99
Retail: $49.99
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Lennox X8349 MERV 10 Filter Maintenance Kit
(X8349)

The Lennox X8349 MERV 10 Filter Maintenance Kit is a filter maintenance kit for the Lennox PCO-12C PureAir Air Purification System. This maintenance kit includes one MERV 10 filter (X6664), one catalyst insert (75X73), and four UV bulbs (X8149). The

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Lennox X8349 MERV 10 Filter Maintenance Kit
Our Price: $196.00
Retail: $225.25
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Lennox X8345 MERV 16 Filter Upgrade Kit
(X8345)

The Lennox upgrade kit, part number x8345 is meant for your Lennox PureAir PCO-20C air filtration unit. This MERV 16 filter measures 21" x 26" x 4" inches. Also known as the Lennox healthy climate, this filter upgrade kit will provide you with even

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Lennox X8345 MERV 16 Filter Upgrade Kit
Our Price: $312.15
Retail: $343.15
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Trion Air Bear Media AC Filter 16x25x3 6-Pack
(255649-101 6pack)

The Trion Air Bear Media AC Filter 16x25x3 part number 255649-101 is a genuine Trion Air Bear pleated media filter. The 255649101 can be used in Trion models Air Bear TM and Air Bear Cub. Replaces 229990-101 and 229990-001 as an upgrade.

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Trion Air Bear Media AC Filter 16x25x3 6-Pack
Our Price: $100.95
Retail: $132.00
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GeneralAire F1018 MERV 11 16x25x4 Media Filter
(4571)

The General Aire F1018 MERV 11 16x25x4 Media Filter is the correct filter replacement for the General Air TERSus 1200, and removes airborne allergens and particles down to 0.3 microns to improve indoor air quality of your home dramatically.


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GeneralAire F1018 MERV 11 16x25x4 Media Filter
Our Price: $51.99
Retail: $59.99
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Filters Fast 5" Trane Compatible Air Filter 2-Pack
(FFC175275TRN OKGM)

The Filters Fast 5" Trane Compatible FFC175275TRN OKGM is a compatible replacement air filter that replaces the Trane BAYFTFR17M and Trane FLR06069 air filters, both of which can be used in several models of Trane Air Cleaners. This 5" filter boasts


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Filters Fast 5" Trane Compatible Air Filter 2-Pack
Our Price: $70.99
Retail: $104.99
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GeneralAire 401-13156 MERV 11 Filter Media
(4051)

The GeneralAire Merv 11 ventilator filter replacement is designed for use in GeneralAire Air Cleaners. This part is often called a GeneralAire 401-13156. A suitable AC24 filter replacement, this Merv 11 replacement filter is expandable.


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GeneralAire 401-13156 MERV 11 Filter Media
Our Price: $52.85
Retail: $69.99
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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
(203719)

The Honeywell 203719 Furnace Air Filter - 16x25x5 is a replacement air filter for use with the Honeywell 16X25 model F100 and F200 air cleaners. This Honeywell air filter, also known as the Honeywell FC100A1029, has a MERV 10 rating and traps 96% of


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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
As Low As: $36.00
Retail: $39.95
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Trion Air Bear Right Angle Air Cleaner Merv 11
(447380-510)

The 447380-510 is the correct air cleaner that uses: 5" thick electrostatically charged pleated filter media.

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Trion Air Bear Right Angle Air Cleaner Merv 11
Our Price: $131.99
Retail: $149.99
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Free Flow Room Air Conditioner Filter - 15" x 24"
(93524)

This Free Flow Room Air Conditioner Filter (1777) is a universal 15" x 24" cut to fit black foam room air conditioner filter. It filters dirt, dust, soot, pollen, and other allergens.


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Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $10.99
Retail: $15.99
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Honeywell 209989 Air Cleaner Pre-Filter - 16x20 2-Pack
(209989)

The Honeywell 209989 Air Cleaner Pre-Filter - 16x20 includes two 16" x 10" pre-filters for Honeywell 16" x 20" air cleaner models. This Honeywell pre-filter trap larger particulates in your air to extend the life of your air filter. This air cleaner


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Honeywell 209989 Air Cleaner Pre-Filter - 16x20
Our Price: $65.20

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Honeywell 50000293-003 Post Air Filter - 10x20 2pk 2-Pack
(50000293-003)

The Honeywell 50000293-003 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F58F Honeywell F300 The Honeywell 50000293-003 Post Air Filter - 10x20 improves the performance and efficiency of the


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Honeywell 50000293-003 Post Air Filter - 10x20 2pk
Our Price: $87.98

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FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack
(FFC20265WRM13)

The FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack is a compatible alternative that's a part of the White Rodgers F825 Series residential air cleaner replacement filters.


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FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack
Our Price: $81.00
Retail: $100.00
You Save 19%!

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Trion Trim T / Trim TX Air Cleaner Prefilter
(123324-008)

The Trion Trim T / Trim TX Air Cleaner Prefilter is an aluminum prefilter for electronic air cleaners. Trion Trim T electronic air cleaners are whole house air cleaners built for air duct system. Electricity is utilized to attract and capture dust,


Special Order. Ships in 14 days.
Trion Trim T / Trim TX Air Cleaner Prefilter
Our Price: $22.99
Retail: $29.99
You Save 23%!

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FC40R1830 18x30 Honeywell Return Grille AC Filter 5-Pack
(FC40R1830)

The Honeywell FC40R1830 18x30 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Honeywell replacement furnace filters capture airborne particles that circulate through the furnace filter.


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FC40R1830 18x30 Honeywell Return Grille AC Filter
Our Price: $217.50

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Filters Fast - Air Filters

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