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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


BestAir HW14 Replacement For Honywell HC-14N
(HW14)

The RPS Best Air HW14 compatible humidifier filter is a cost-saving alternative to the Honeywell oem filter wick. The HW14 is compatible with the Honeywell Quietcare HCM-6009


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BestAir HW14 Replacement For Honywell HC-14N
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FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk
(FFC21235TRNM8)

For an economical alternative to the genuine OEM Trane 21x23x5 Perfect Fit BAYFTAH23M Filter, try this FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk.


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FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk
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Trane BAYFTAHEXM2 Expandable Replacement Media
(BAYFTAHEXM2)

The Trane BAYFTAHEXM2 Expandable Replacement Media is a set of two furnace air filters that require the use of a Retrofit Frame Kit to be operable. This Trane Perfect Fit filter measures approximately 20 inches in length and 5 inches in thickness. T


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FiltersFast Trane Perfect Fit BAYFTAH21M 21.5x21x5 2pk
(FFC215215TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTAH21M or FLR06072, which is a 21.5x21x5 Air Filter used in several Trane Air Cleaners

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FiltersFast Trane Perfect Fit BAYFTAH21M 21.5x21x5 2pk
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Lennox X6670 MERV 11 Pleated Filter Media-16x25x5
(X6670)

This Lennox X6670 Fir Filter Media is able to capture particles as small as 0.3 microns. This Lennox Pleated Filter Media offers greater dust-holding ability.


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Lennox X6670 MERV 11 Pleated Filter Media-16x25x5
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Honeywell FC40R1003 Return Grille Filter
(FC40R1003)

The Honeywell FC40R1003 a high-efficiency, replacement filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 20x20x4. Genuine Honeywell Part.


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Honeywell FC40R1003 Return Grille Filter
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Trane Perfect Fit BAYFTAH23M2 21" x 23.5" x 5"
(BAYFTAH23M2)

The Trane Perfect Fit BAYFTAH23M2 23.5x21x5 Air Filter is a replacement air filter for the Trane model BAYFRAME215A and TFM215A0AH1 air cleaners. The Trane Perfect Fit filter measures approximately 23.5" x 21" x 5" and features a MERV 8 rating for t


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Trane Perfect Fit BAYFTAH23M2  21" x 23.5" x 5"
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Lennox X0586 MERV 11 Pleated Media Filter
(X0586)

This Lennox X0586 MERV 10 Pleated Media Filter is a genuine MERV 10 filter offering efficient and effective filtration. This Lennox Pleated Furnace Filter only needs to be replaced every 6 months.


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Lennox X0586 MERV 11 Pleated Media Filter
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Lennox X6667 MERV 11 Air Filter Media Replacement
(X6667)

The Lennox X6667 MERV 11 Air Filter Media Replacement is a replacement air filter for Lennox Healthy Climate PureAir PCO-20 air cleaners. This box media utilizes a MERV 11 pleated filter that captures particles as small as 0.3 microns in size.


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Lennox X6667 MERV 11 Air Filter Media Replacement
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FiltersFast Brand Honeywell FC100A1003 16x20x5 2-Pack
(FFC16205HON)

The FiltersFast FFC16205HON 2 pack compatible air filters replaces the Honeywell FC100A1003 and provides an array of solutions for contaminated indoor air.


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FiltersFast Brand Honeywell FC100A1003 16x20x5 2-Pack
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Trion 255649-103 Air Bear Media Filter 20x20x5
(255649-103)

Fight air quality problems around your home with the Trion Air Bear 255649-103 replacement air filter media. The 20x20x5 deep pleated design offers greater surface area for a higher capture of airborne particles that contribute to allergies.


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Trion 255649-103 Air Bear Media Filter 20x20x5
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FiltersFast 4-inch MERV 8 Air Filters 3-Pack
(FFM8PLEAT 4)

The FiltersFast 4-inch MERV 8 4"Air Filters 3-pack is compatible with: Aprilaire Space-Gard Trion Air Bear Honeywell and other top name brand air conditioning filters. Usable in residential, commercial, and industrial applications, the


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FiltersFast 4-inch MERV 8 Air Filters 3-Pack
Our Price: $43.95

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FiltersFast Trane Perfect Fit BAYFTFR21M 21x27x5 2pk
(FFC21275TRNM11)

These MERV 11 FiltersFast Brand compatible Furnace Filters are replacement filters for Trane Perfect Fit Air Filters. These FiltersFast Air Filters replace Trane part number BAYFTFR21M or FLR06070 , which is used in several Trane Air Cleaner models

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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
(FFC20255TABM13)

The FiltersFast Brand Trion Air Bear Filter 20x25x5 MERV13 2-Pack is a compatible version of the genuine Trion Air Bear Media AC Filter 20x25x5, 255649-102.


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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
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FiltersFast MERV 8 Pleated Filters 6-Pack
(FFM8Pleat)

With an initial pressure drop of around .17, these FiltersFast 2" MERV 8 Pleated Panel Filters are comparable to or an upgrade over such other pleat filters as the American Air or AmAir PerfectPleat, the Airguard Xtreme Pleated Panel Filters ...


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FiltersFast MERV 8 Pleated Filters 6-Pack
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FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M
(FFC21275TRNM8)

The FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M Filter is an economical compatible alternative to the genuine OEM Trane 21x27x5 Perfect Fit BAYFTFR21M Filter.


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FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M
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Honeywell 20X25 Air Filter Replacement - MERV 13
(FC200E1037)

The Honeywell 20X25 Air Filter Replacement is a MERV 13 rated high efficiency media air cleaner that can be used in all compatible size air ducts plus Honeywell cleaners that require a 20"W x 25"L x 4"D filter. It will also fit all Aprilaire, Space-


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Honeywell 20X25 Air Filter Replacement - MERV 13
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GeneralAire 990-13 Evaporator Filter Pad
(7002)

The Generlaire 900-13 replacement humidifier pad is also known as the General Aire 7002. The 900-13 is manufactured for use in your GeneralAire series humidifier. This GeneralAire evaporator pad will draw water into it, then release fresh evaporatio


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GeneralAire 990-13 Evaporator Filter Pad
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FiltersFast Brand Trane PerfectFit BAYFTFR24M 24.5x27x5
(FFC24265TRN)

These FiltersFast Brand Trane Perfect Fit BAYFTFR24M 24.5x27x5 MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTFR24M, which is a 24.5x27x5


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FiltersFast Brand Trane PerfectFit BAYFTFR24M 24.5x27x5
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Filter Monster 30985G Replacement For Hunter 30985
(30985)

The Hunter 30985 - Replacement Purifier Filter- 30480 is a replacement air filter for the Hunter 30408 and 30442 air purifiers. This replacement Hunter filter is an electric HEPA filter that traps up to 99.9% of airborne particles while also elimina


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Filter Monster 30985G Replacement For Hunter 30985
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Lennox X8788 MERV 16 PureAir Filter Replacement
(X8788)

The Lennox X8788 MERV 16 filter is made for your PureAir PC020-28 unit. Also known as a healthy climate filter, this pleated filter will remove harmful airborne contaminants from your home. If you or your family members suffer from asthma or allergi

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Lennox X8788 MERV 16 PureAir Filter Replacement
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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
(A10PR R)

The FiltersFast A10PR R is the correct replacement filter for Aprilaire Humidifier Models 110, 220, 500, 550, 558.


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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
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Lennox X0583 MERV 11 Air Cleaner Media Filter
(X0583)

This Lennox X0583 MERV 11 Air Cleaner Media Filter needs to be replaced every 6 months. The Lennox Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store.


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Lennox X0583 MERV 11 Air Cleaner Media Filter
Our Price: $35.95
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Lennox H/C X6664 MERV 11 Air Filter Replacement
(X6664)

The Lennox H/C X6664 MERV 10 Air Filter Replacement is a replacement air filter for the Lennox PCO-12C PureAir air cleaner. This pleated air filter features a MERV 10 rating and can trap airborne particulates down to as small as 0.3 microns.


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Lennox H/C X6664 MERV 11 Air Filter Replacement
Our Price: $33.95
Retail: $49.00
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FiltersFast Brand Aprilaire SpaceGard 2400 16x27x6 2-Pack
(FFC162766SG)

The FiltersFast Compatible 16x27x6 MERV 11 Air Filter can be used as an upgrade for the Aprilaire Space Gard 2400. Upgrade your Space Gard AC filter today to the pre-assembled, easy to install FiltersFast Space Gard Compatible 16x27x6!


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FiltersFast Brand Aprilaire SpaceGard 2400 16x27x6 2-Pack
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Filters Fast - Air Filters

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