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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.

Trane air filters should be replaced every year to maintain air quality and excellent furnace performance.


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Trane Furnace Filters product list


Trane Perfect Fit BAYFTFR24P4A Filter 24.5x28.5x1
(BAYFTFR24P4A)

The Trane Perfect Fit BAYFTFR24P4A Filter - 24.5◊28.5x1 fits several air cleaner models manufactured by Trane. Featuring pleats and a depth of 1 inch, this Trane Perfect Fit filter measures approximately 24.5◊28.5x1 and helps improve your overall i


Special Order. Ships in 9 days.
Trane Perfect Fit BAYFTFR24P4A Filter 24.5x28.5x1
Our Price: $16.27
Retail: $19.99
You Save 19%!

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Trane Perfect Fit BAYFTFR14W1A Prefilter 14.5x27x1
(BAYFTFR14W1A)

The Trane Perfect Fit BAYFTFR14W1A Prefilter 14.5x27x1 is a washable filter with a MERV 5 rating that needs to be changed every 3 months for maximum efficiency. This Trane pre-filter includes two filters that measure approximately 12 7/8" X 14 1/4"


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR14W1A Prefilter 14.5x27x1
Our Price: $17.54
Retail: $19.99
You Save 12%!

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Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 6-Pack
(BAYFTFR24W1A)

The Trane BAYFTFR24W1A is a pre-filter for use in the following application: 24 1/2 inch enclosures The Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 has a nominal size of 24 1/2 inches x 27 inches x 1 inch. The actual size of this Trane


Special Order. Ships in 38 days.
Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 6-Pack
Our Price: $167.94
Retail: $179.94
You Save 7%!

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Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5
(BAYFRAME210A)

The Trane BAYFRAME210A is an air filter kit that fits the following air cleaner model: Trane TFM210A0FR0 The Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane P

Free shipping within the continental United States!

Special Order. Ships in 26 days.
Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5
Our Price: $157.72
Retail: $199.99
You Save 21%!

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Trane Perfect Fit Filter BAYFTFR17M- 14x26x5 MERV8
(BAYFTFR17M)

TheTrane Perfect Fit Filter MERV8 14X26X5-BAYFTFR17M is a replacement AC Furnace Pleated Filter that increases your systemís energy efficiency and reduces overall expenses.


In Stock! Ships in 3 to 4 business days.
Trane Perfect Fit Filter BAYFTFR17M- 14x26x5 MERV8
Our Price: $54.95
Retail: $99.99
You Save 45%!

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Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5
(BAYFRAME245A)

The Trane BAYFRAME245A is an air filter kit that fits the following air cleaner model: Trane TFM245A0FR0 The Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane Perf

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Trane BAYFRAME245A Filter Frame Kit - 24.5x27x5
Our Price: $196.36
Retail: $199.95
You Save 2%!

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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


In Stock! Ships in 10 to 11 business days.
Filters Fast 5" Trane Compatible Air Filter 2-Pack
Our Price: $66.66
Retail: $104.99
You Save 37%!

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Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5
(BAYFRAME145A)

The Trane BAYFRAME145A is an air filter kit that fits the following air cleaner model: Trane TFM145A0FR0 The Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane Perf

Free shipping within the continental United States!

Special Order. Ships in 26 days.
Trane BAYFRAME145A Filter Frame Kit - 14.5x27x5
Our Price: $154.50
Retail: $169.99
You Save 9%!

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Trane Perfect Fit BAYFRAME260A Filter Kit- 26x21x5
(BAYFRAME260A)

The Trane Perfect Fit BAYFRAME260A Filter Kit- 26x21x5 is a furnace air filter that can replace the Trane BAYFTAH26M PerfectFit air filter. This Trane furnace filter can be used in the TFM260A0AH1 model air cleaner and measures approximately 26" x 2

Free shipping within the continental United States!

Special Order. Ships in 24 days.
Trane Perfect Fit BAYFRAME260A Filter Kit- 26x21x5
Our Price: $176.99
Retail: $199.99
You Save 12%!

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Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5
(BAYFRAME235A)

The Trane BAYFRAME235A is an air filter kit that fits the following air cleaner model: Trane TFM235A0AH1 The Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5 contains 1 plastic frame and 1 BAYFTAHEXM expandable accordion filter. This Trane Perfe

Free shipping within the continental United States!

Special Order. Ships in 21 days.
Trane BAYFRAME235A Filter Frame Kit - 23.5x5x5
Our Price: $150.63
Retail: $199.99
You Save 25%!

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Trane BAYFTAH23P4A Pleated 1 inch Filter 23.5x21x1
(BAYFTAH23P4A)

The Trane BAYFTAH23P4A Pleated 1 inch Filter 23.5x21x1 fits several electronic and media air cleaner models from Trane. This Trane Perefect Fit filter measures approximately 23.5" x 21" x 1" and purifies your indoor air by reducing particulates. Thi


Discontinued Product Read Description.
Trane BAYFTAH23P4A Pleated 1 inch Filter 23.5x21x1
Our Price: $10.99
Retail: $14.99
You Save 27%!

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Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
(FFC23205TRNM8)

For an economical compatible version of the genuine OEM Trane BAYFTAH23M 21x23.5x5 Perfect Fit Filter, try this MERV 8 Trane 21x23.5x5 Perfect Fit BAYFTAH23M replacement filter.


Discontinued Product Read Description.
Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
Our Price: $50.00
Retail: $70.00
You Save 29%!

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Filters Fast - Trane Furnace Filters

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