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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.


Air Filters full product list:


FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
(FFC175275TRN M13)

These FiltersFast Brand MERV 13 Furnace Filters replace Trane Perfect Fit Air Filters with the part number BAYFTFR17M or FLR06069, which are 17.5x27x5 air filters used in several Trane Air Cleaner models.

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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
Our Price: $90.99
Retail: $116.99
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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
(FFC16255TAB)

The FiltersFast Compatible 16x25x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-105. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
Our Price: $56.00
Retail: $83.00
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Aprilaire 1413 Air Filter Performance Upgrade Kit
(Aprilaire 1413)

The Aprilaire 1413 is an Aprilaire Upgrade Kit that allows owners of Spacegard 2400 and Aprilaire 2400 air cleaners to use the MERV 13 Aprilaire 413 Filter instead of their MERV 10 Aprilaire 401 Filter. This improves air cleaning performance by 65 p


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Aprilaire 1413 Air Filter Performance Upgrade Kit
Our Price: $55.95
Retail: $64.99
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Lennox X8348 PCO-20C MERV 10 Filter Maintenance Kit
(X8348)

The Lennox X8348 MERV 10 Filter Maintenance Kit is a maintenance kit for the Lennox PCO-20C PureAir Air Purification System. This PureAir maintenance kit includes: one MERV 10 filter, also known as part number X6667; one catalyst insert, also known

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Lennox X8348 PCO-20C MERV 10 Filter Maintenance Kit
Our Price: $228.95
Retail: $354.95
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FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 x2
(FFC26215TRNM13)

If you are looking for an economical compatible version of the genuine Trane/American Standard BAYFTAH26M Perfect Fit Air Filter, try this FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 with a MERV 13 energy efficiency rating.

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FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 x2
Our Price: $111.00
Retail: $140.00
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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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Lennox X0581 MERV 10 Pleated Furnace Filter Media
(X0581)

This Lennox X0581 MERV 10 Pleated Furnace Filter Media provides high efficiency filtration. This Merv 10 furnace filter requires no assembly or combs.


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Lennox X0581 MERV 10 Pleated Furnace Filter Media
Our Price: $34.95
Retail: $39.99
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GE WB02X10956 Compatible Microwave Filter
(OEMRCP0303)

This Microwave Filter Replacement (OEMRCP0303) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10956 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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GE WB02X10956 Compatible Microwave Filter
Our Price: $8.99
Retail: $9.99
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Lennox X8310 MERV 11 Expandable Filter Replacement
(X8310)

The Lennox x8310 expandable MERV 11 filter is for use in your homes filter system. Also known as the healthy climate furnace filter, the X8310 measures 20x25x5 inches. This furnace filter media will protect your home from particles such as du


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Lennox X8310 MERV 11 Expandable Filter Replacement
Our Price: $33.95
Retail: $39.50
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BestAir R14ALLM Replacement For Honeywell HRF-AP1 2-Pack
(HRF-AP1 1 R)

The Honeywell HRF-AP1 Carbon PreFilter 2-Pack is a replacement carbon pre-filter for all models of Honeywell Round Air, Honeywell Quietcare, and Honeywell SilentComfort air purifiers. This two pack of carbon filters is cut-to-fit, reduces common odo


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BestAir R14ALLM Replacement For Honeywell HRF-AP1 2-Pack
Our Price: $17.99
Retail: $19.99
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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
(259112-101 6Pack)

The Trion Air Bear Cub Filter 16x25x3 MERV 11 6-Pack can be used Trion AirBear Air Cleaners and all air cleaners that need 16"x25"x3" air filters. These Trion filters are an economical upgrade from simple poly-pleated or fiberglass filters.

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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
Our Price: $91.99
Retail: $109.99
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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
(FFC20205HONM13)

The FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack is a compatible version of the genuine Honeywell FC100A1011 20"x20" Media AC Filter. This filter replacement is also known as part number FFC20205HONM13.


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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
Our Price: $80.99
Retail: $90.00
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3M Filtrete Dust & Pollen Furnace Filter 6-Pack LB
(Dust and Pollen 6-Pk)

The 3M Filtrete Dust & Pollen Furnace Filter is an electrostatically charged furnace filter ideal for high velocity HVAC systems. 3M Filtrete filters are an economical upgrade from cheap one month filters.


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3M Filtrete Dust & Pollen Furnace Filter 6-Pack LB
Our Price: $62.25
Retail: $70.11
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Honeywell Enviracaire HC22A1007 Filter - HE220a
(HC22A 1007)

The Honeywell Enviracaire Elite HC22A 1007 Humidifier Pad replaces the humidifier pad in the Honeywell HE220A,B Bypass Flow-Through Humidifier or Aprilaire 550 Humidifier. Genuine Honeywell part.


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Honeywell Enviracaire HC22A1007 Filter - HE220a
Our Price: $12.99
Retail: $13.00
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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
(203371)

The Honeywell 203371 is the correct replacement for the following air cleaners: Honeywell F300E1019 Honeywell F58A1001 Honeywell F58E1002 Honeywell F50F1073 Honeywell F58F1018 Honeywell F50E1158 Honeywell F50E1174 Honeywell F50E1281 Honey


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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
Our Price: $57.59
Retail: $59.99
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Honeywell 50000293-002 Post Filter for F300 2-Pack 2-Pack
(50000293-002)

The Honeywell 50000293-002 is the correct replacement for the following air cleaners: Honeywell F300 Series Honeywell F50F Series Honeywell F58F Series The Honeywell 50000293-002 Post Filter for F50F & F300 measures 16 inches by 12 1/2 inche


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Honeywell 50000293-002 Post Filter for F300 2-Pack
Our Price: $44.07

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Honeywell HAC-506 Humidifier Filters 2-Pack
(D13-C)

Humidifier filter removes mineral and pollutants from water. The Honeywell HAC-506 compatible humidifier filters comes in a convenient 2-Pack and fits select humidifier models including Duracraft.


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Honeywell HAC-506 Humidifier Filters 2-Pack
Our Price: $11.99
Retail: $12.99
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Honeywell FC40R1102 Return Grille Filter-14x14x3
(FC40R1102)

The Honeywell FC40R1102 is a high-efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the AC filter. Nominal Dimension 14x14x4. Genuine Honeywell Part.


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Honeywell FC40R1102 Return Grille Filter-14x14x3
As Low As: $32.10
Retail: $44.99
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FiltersFast A10PR R Replacement for Lennox WB2-1
(Lennox WB2-12 R)

The FiltersFast A10PR R Humidifier Water Panel Filter is the correct replacement for the Lennox WB2-1 and the following filters:


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FiltersFast A10PR R Replacement for Lennox WB2-1
As Low As: $6.99
Retail: $19.99
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FiltersFast A35WPR Replacement For Trane BAYPAD02A1310A
(T BAYPAD02A1310A R)

This FiltersFast Brand Trane BAYPAD02A1310A Humidifier Panel Filter offers Honeycomb filtration to trap mineral impurities found in water. You should replace your Trane filter twice a season or more often in hard water areas.


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FiltersFast A35WPR Replacement For Trane BAYPAD02A1310A
As Low As: $11.45
Retail: $14.99
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Aprilaire 440 Humidifier Water Panel Evaporator
(A12WPR)

The 440 Humidifier Water Panel Evaporator Replacement is a paper Water Pad for your Aprilaire humidifier.The A12WPR Aprilaire Humidifier Water Panel Evaporator Replacement helps your Aprilaire humidifier system generate humidity. If your home su


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Aprilaire 440 Humidifier Water Panel Evaporator
Our Price: $10.99
Retail: $14.99
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FiltersFast Replacement for Honeywell FC100A1011 - 20x20x5 2-Pack
(FFC20205HONM8)

FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack Air Filter is an economical compatible version of the OEM Honeywell FC100A1011 20"x20" Media AC Filter. To save money, this air filter replacement comes in a 2pk value set.


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FiltersFast Replacement for Honeywell FC100A1011 - 20x20x5 2-Pack
Our Price: $44.90
Retail: $50.00
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Honeywell FC40R1045 14x25 Return Air Grille Filter
(FC40R1045)

Honeywell FC40R1045 14x25 Return Air Grille AC Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 14x25x4. Genuine Honeywell Part.


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Honeywell FC40R1045 14x25 Return Air Grille Filter
Our Price: $29.99
Retail: $44.99
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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1" MERV 13 6-Pack
(FFM13 6pk AS)

The FiltersFast 1" Air Filters MERV 13 6-Pack is the compatible replacement for the Aerostar 1" MERV 13 Air Filters.


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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1"  MERV 13 6-Pack
Our Price: $59.95
Retail: $69.99
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Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
(FC200E1011)

The Honeywell FC200E1011 Media Filter 20x20x5- Merv 13 is a replacement air filter for the Honeywell 20X20 F100 and F200 media air cleaners. This Honeywell air filter boasts a MERV 13 rating and removes over 97% of 3 to 10 micron particles from indo


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Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
Our Price: $46.99

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