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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 A10PR R Replacement for Honeywell HC22
(Honeywell HC22 R)

The Honeywell HC22 Humidifier Water Panel Filter is a replacement humidifier water panel filter that is compatible with several Honeywell furnace humidifier models. This evaporator pad measures approximately 9.5" x 10" x 1.5" and traps mineral pollu


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FiltersFast A10PR R Replacement for Honeywell HC22
As Low As: $6.99
Retail: $10.99
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FiltersFast 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 Trion Compatible 16x25x5, 2-Pack
Our Price: $56.00
Retail: $83.00
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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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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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Trion Air Bear Cub Filter 16x25x5 MERV 11
(259112-105)

This Trion Air Bear 259112-105 Filter is the correct replacement for the following air cleaning system: Trion Air Bear Duct Mount Media Air Cleaner


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Trion Air Bear Cub Filter 16x25x5 MERV 11
Our Price: $30.95

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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 A10WPR Replacement For Aprilaire 550 Humidifier Water Panel
(A10WPR)

The 550 fits Aprilaire, Chippewa, Hamilton, Honeywell, Lasko, Totaline, Healthy Climate and Lennox Humidifier systems.


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FiltersFast A10WPR Replacement For Aprilaire 550 Humidifier Water Panel
Our Price: $15.99
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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GeneralAire HF500 HEPA Filter for AC500
(4620)

The GeneralAire HF500 HEPA Filter for AC500 is a replacement air filter for the GeneralAire Model AC500 Air Cleaner. This HEPA filter is 99.7% efficient at reducing airborne particles down to 0.30 microns. This HEPA air filter, also known as the RHF

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GeneralAire HF500 HEPA Filter for AC500
Our Price: $96.62
Retail: $149.99
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Trion Air Bear 259112-103 Supreme Filter 20x20x5 MERV11 4-PacK
(259112-103 4pack)

The 259112-103 is the correct filter replacement for the following Trion Air Bear and Air Bear Supreme air cleaning systems.

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Trion Air Bear 259112-103 Supreme Filter 20x20x5 MERV11 4-PacK
Our Price: $111.99
Retail: $189.99
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FiltersFast Trion 20x20x5 Air Bear Filter MERV 13 2-Pack
(FFC20205TABM13)

The Trion 20x20x5 Air Bear Furnace Filter is the compatible version of the genuine Trion Air Bear Media Filter 20x20x5, 255649-103.


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FiltersFast Trion 20x20x5 Air Bear Filter MERV 13
Our Price: $61.96

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Lennox X5425 MERV 16 Pleated Furnace Filter Media
(X5425)

This Lennox X5425 MERV 16 Pleated Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store. This pleated filter is a genuine MERV 16 filter.

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Lennox X5425 MERV 16 Pleated Furnace Filter Media
Our Price: $91.95
Retail: $122.10
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Honeywell HC22E 1003 Enviracaire Humidifier Filter
(HC22E 1003)

The Honeywell Enviracaire Elite HC22E 1003 Humidifier Pad fits on Honeywell HE220, and HE225 Bypass Flow-Through Humidifiers and Aprilaire 550 Humidifier. Genuine Honeywell part.


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Honeywell HC22E 1003 Enviracaire Humidifier Filter
Our Price: $29.99

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Lennox X0444 MERV 11 Pleated Furnace Filter Media
(X0444)

The Lennox X0444 MERV 10 Pleated Furnace Filter Media is a filter for your HVAC system. This furnace filter media is known as the x0444 and uses a MERV 10 air filter.The MERV 10 rating will provide your home with significant air cleaning capability


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Lennox X0444 MERV 11 Pleated Furnace Filter Media
Our Price: $30.95
Retail: $39.99
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FiltersFast DSG401M11FF Replacement For Aprilaire #401 Filter
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


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FiltersFast DSG401M11FF Replacement For Aprilaire #401 Filter
Our Price: $51.98
Retail: $59.99
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Lennox X0587 MERV 11 Pleated Media Filter
(X0587)

This Lennox X0587 MERV 10 Pleated Media Filter is a MERV 10 replacement furnace filter. This pleated furnace filter offers quality filtration of impurities and pollutants in the air.


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Lennox X0587 MERV 11 Pleated Media Filter
Our Price: $42.95
Retail: $49.99
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3M Filtrete Home Odor AC Filter - 20 x 25 x 1
(Filtrete-Odor-20251)

The 3M Filtrete Home Odor AC Filter - 20 x 25 x 1 features activated carbon technology along with electrostatically charged fibers to provide high performance air filtration in your home. This Filtrete air filter can remove common odors such as pet,


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3M Filtrete Home Odor AC Filter - 20 x 25 x 1
Our Price: $21.61
Retail: $29.99
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FiltersFast A35WPR Replacement For Carrier P1103545
(Carrier P1103545 R)

The Carrier P1103545 Humidifier Water Panel Filter is the correct compatible replacement for: Several models of Carrier furnace humidifiers This humidifier water panel filter measures approximately 10" x 13 1/4" x 1 1/2". This Carrier water pa


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FiltersFast A35WPR Replacement For Carrier P1103545
As Low As: $11.45
Retail: $14.99
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Lennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement
(X7935)

TheLennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement is a replacement filter media for the Lennox HCC14-23 Healthy Climate True Fit Cabinet. Measuring approximately 20x20x5, this MERV 16 furnace filter box will trap at least 95%

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Lennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement
Our Price: $120.80
Retail: $149.95
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Lennox X8789 MERV 16 Filter Media Replacement
(X8789)

The Lennox X8789 MERV 16 Filter Media Replacement is the correct replacement for any HVAC system that requires a 16" x 26" x 5" filter. This Lennox Healthy Climate filter has an efficiency rating of MERV 16, the highest efficiency rating. The Len

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Lennox X8789 MERV 16 Filter Media Replacement
Our Price: $119.95
Retail: $226.95
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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: $59.25
Retail: $60.11
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FiltersFast Brand Trane Perfect Fit 17.5x27x5 MERV13 -2
(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 Brand Trane Perfect Fit 17.5x27x5 MERV13 -2
Our Price: $90.99
Retail: $116.99
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Honeywell FC40R1169 14x30 Return Grille Air Filter
(FC40R1169)

The Honeywell FC40R1169 14x30 Return Grille Air Filter is a replacement air filter that fits most return filter grilles. This return air filter grille measures 14" x 30" and features a MERV 10 rating for the reduction of airborne contaminants. The H


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Honeywell FC40R1169 14x30 Return Grille Air Filter
Our Price: $34.95
Retail: $39.99
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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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FiltersFast Brand Bryant,Carrier FILXXFNC0021 Filter 2-Pack
(FILXXFNC0021)

FiltersFast Brand Bryant,Carrier FILXXFNC0021 Filter


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FiltersFast Brand Bryant,Carrier FILXXFNC0021 Filter 2-Pack
Our Price: $55.99
Retail: $69.99
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