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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.


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Air Filters full product list:


BestAir R14ALLM Replacement For Honeywell 32001 2-Pack
(Honeywell 32001 1 R)

The Honeywell 32001 Carbon PreFilter 2-Pack is a high quality carbon pre-filter that removes household odors and other impurities. This Honeywell 32001 Carbon PreFilter 2-Pack should be replaced every three months for optimum performance.


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BestAir R14ALLM Replacement For Honeywell 32001 2-Pack
Our Price: $17.99
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BestAir R14ALLM Replacement For Bionaire 115-CS 2-Pack
(Bionaire 115-CS 1 R)

The Bionaire 115-CS Carbon PreFilter 2-Pack is a replacement carbon pre-filter for several Bionaire air purifier models that reduces households odors from sources such as cooking or smoke. This carbon filter arrives in a 2 pack and traps dust and la


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BestAir R14ALLM Replacement For Bionaire 115-CS 2-Pack
Our Price: $17.99
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BestAir R14ALLM Replacement For Bionaire A0802C 2-Pack
(Bionaire A0802C 1 R)

The Bionaire A0802C Carbon Pre-Filter comes in a convenient 2 pack. This two pack of carbon prefilters is for use in your Bionaire SH0840 Air Purifier. These carbon prefilters will trap unpleasant odors and have 9.6" x 9.3" x 0.2" dimensions.


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BestAir R14ALLM Replacement For Bionaire A0802C 2-Pack
Our Price: $17.99
Retail: $19.99
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Honeywell HAC-500 Humidifier Filter Pad
(Honeywell HAC-500 R)

The Honeywell HAC-500 Humidifier Filter Pad is a replacement humidifier filter for several Honeywell humidifier models. This evaporator pad measures approximately 7 7/8" x 8" x 1 3/4" and features honeycomb filtration to trap mineral pollutants foun


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Honeywell HAC-500 Humidifier Filter Pad
Our Price: $6.99
Retail: $9.99
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FiltersFast 14ALL Replacement For Bemis 1104 Air Purifier Carbon PreFilter
(Bemis 1104 R)

The Bemis 1104 Air Purifier Carbon PreFilter is for use in your Bemis series Air Purifier. This carbon prefilter will help remove large particles and odors from your air. Another benefit of this prefilter is that it extends the life of your HEPA fil


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FiltersFast 14ALL Replacement For Bemis 1104 Air Purifier Carbon PreFilter
As Low As: $9.95
Retail: $19.99
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FiltersFast 14ALL Replacement For Bionaire 115-CS Air Purifier Carbon PreFilter
(Bionaire 115-CS R)

The Bionaire 115-CS Air Purifier Carbon PreFilter is a pre-filter that measures approximately 1/4" thick. This Bionaire filter helps to reduce household odors and keep dust and large particles from entering and clogging your filter.


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FiltersFast 14ALL Replacement For Bionaire 115-CS Air Purifier Carbon PreFilter
As Low As: $9.95
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FiltersFast 14ALL Replacement For Bionaire A1000C Air Purifier Carbon PreFilter
(Bionaire A1000C R)

The Bionaire A1000C is the correct replacement for Bionaire Air Purifiers models SH1240, SH1260, SH1840, & the SH1860.


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FiltersFast 14ALL Replacement For Bionaire A1000C Air Purifier Carbon PreFilter
As Low As: $9.95
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FiltersFast 14ALL Replacement For Bionaire A0802C Air Purifier Carbon PreFilter
(Bionaire A0802C R)

The Bionaire A0802C Air Purifier Carbon PreFilter is for use in your Bionaire SH0840 Air Purifier. This prefilter has dimensions of 9.6" x 9.3" x 0.2" inches.The Bionaire A0802C will trap chemical substances and odors found in your air.


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FiltersFast 14ALL Replacement For Bionaire A0802C Air Purifier Carbon PreFilter
As Low As: $9.95
Retail: $19.99
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FiltersFast 14ALL Replacement For Bionaire A1260C Air Purifier Carbon PreFilter
(Bionaire A1260C R)

The Bionaire A1260C Air Purifier Carbon PreFilter is a carbon pre-filter for several models of air cleaners and air purifiers. The Bionaire A1260C pre-filter measures approximately 11.2" x 6.6" x 1.8" and the activated carbon filter helps remove odo


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FiltersFast 14ALL Replacement For Bionaire A1260C Air Purifier Carbon PreFilter
As Low As: $9.95
Retail: $19.99
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Hamilton Beach 04230 Air Purifier Carbon PreFilter
(Hamilton Beach 04230 R)

The Hamilton Beach 04230 carbon prefilter will protect your air purifiers HEPA filter. These carbon prefilters will trap harmful particulates and unpleasant odors.


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Hamilton Beach 04230 Air Purifier Carbon PreFilter
As Low As: $9.95
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FiltersFast 14ALL Replacement For Holmes HAPF93
(HAPF93)

The Holmes HAPF93 Carbon Odor Filter Replacement fits Holmes air purifier models Holmes HAP293 (Holmes HAP-293), Holmes HAP2934 (Holmes HAP-2934), and Holmes HAP294 (Holmes HAP-294). This Holmes HEPA filter pad replacement measures approximately 45.


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FiltersFast 14ALL Replacement For Holmes HAPF93
As Low As: $9.95
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Frigidaire 241575002 Replacement Air Filter
(241575002)

The Frigidaire 241575002 Replacement Air Filter fits Icon and Pure Advantage refrigerator models manufactured by Electrolux and Frigidaire. This refrigerator air filter, also known as the Frigidaire EAF1CB, uses a combination of activated carbon, ze


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Frigidaire 241575002 Replacement Air Filter
Our Price: $12.99
Retail: $14.99
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Bionaire HAPF600CS Replacement for Holmes HAPF30AT-U4
(Bionaire HAPF600CS R)

The Bionaire HAPF600CS R Air Purifier HEPA Filter fits many models of Bionaire and other brands of air purifiers.This Bionaire air purifier filter is a HEPA filter. The Bionaire HAPF600CS R Air Purifier HEPA Filter: Fits many Bionaire and othe


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Bionaire HAPF600CS Replacement for Holmes HAPF30AT-U4
Our Price: $23.95
Retail: $29.95
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Honeywell HC-24 Humidifier Filter Replacement
(Honeywell HC-24 R)

The Honeywell HC-24 Humidifier Filter Replacement is a J replacement humidifier filter for the Holmes Tabletop Cool Mist Humidifier models. This evaporator pad is antimicrobially treated for the removal of pollutants from water and prevents the grow


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Honeywell HC-24 Humidifier Filter Replacement
As Low As: $15.99
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Space-Gard #12 Humidifier Water Panel Replacement
(Space-Gard 12 R)

The Space-Gard #12 is the compatible replacement for the following humidifiers: Space-Gard 112, 136, 224, 440, 445, 445A and 448 humidifiers.


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Space-Gard #12 Humidifier Water Panel Replacement
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Honeywell HC-811 Humidifier Wick Filter
(Honeywell HC-811 R)

The Honeywell HC-811 humidifier wick filter is designed to fit your Honeywell model humidifier. This humidifier wick filter will remove minerals and pollutants from the water, preventing them from being released into your homes air. The HC-811 is re


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Honeywell HC-811 Humidifier Wick Filter
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Holmes HAPF92 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF92M)

The Holmes HAPF92 Air Purifier Carbon PreFilter-2 Pack fits the Holmes HAP292 model air purifier. This carbon prefilter features Microban technology with anti microbial and anti bacterial filter protection. The Holmes HAPF92 Air Purifier Carbon P


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Holmes HAPF92 Air Purifier Carbon PreFilter
Our Price: $15.98

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Holmes HAPF31 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF31M)

This Holmes HAPF31 Air Purifier Carbon PreFilter-2 Pack helps reduce household odors and keeps dust and large particles out of your filter. It is recommended that you replace your Holmes carbon odor filter every 2-3 months for optimum results.


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Holmes HAPF31 Air Purifier Carbon PreFilter
Our Price: $7.00

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Holmes HAPF96 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF96M)

The Holmes HAPF96 is a holmes air filter for your Holmes air purifier. This carbon prefilter helps to remove large particles and odors in your homes air. This air purifier pre filter also protects your air purifiers HEPA filter.


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Holmes HAPF96 Air Purifier Carbon PreFilter
Our Price: $9.00

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Trion Air Bear Supreme 1400 Air Cleaner Merv 11
(455602-625)

The Trion Air Bear Supreme 1400 Air Cleaner Merv 11 is a whole house air cleaner that captures and holds pollutants within its filter. The filter then efficiently allows the air to pass throughout the system. The Trion Supreme 1400 features a rugged

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Trion Air Bear Supreme 1400 Air Cleaner Merv 11
Our Price: $111.99
Retail: $129.99
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Trion Air Bear Supreme 20x20 Air Cleaner Merv 11
(455602-725)

The Trion Air Bear Supreme 20x20 Air Cleaner is a for your whole house air cleaner. The Trion Supreme 20x20 features an easy installation that mounts directly to your heating or cooling system.The Trion 45560

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Trion Air Bear Supreme 20x20 Air Cleaner Merv 11
Our Price: $101.99
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Trion Air Bear Cub Air Cleaner 16x25x3 Merv 8
(455602-425)

The Trion Air Bear Cub Air Cleaner 16x25x3 is a genuine filter for use in your heating and cooling system. This Trion Air Bear Media Air Cleaner has a MERV 8 rating that will rid your home of air contaminants including lint, dust, pollen, mold spore


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Trion Air Bear Cub Air Cleaner 16x25x3 Merv  8
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Trion Air Bear Cub Air Cleaner 16x25x3 Merv 11
(455602-925)

The 455602-925 is the correct air cleaner that uses: 16" X 25" X 3" MERV 11 Air Bear Filter Replacements.

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Trion Air Bear Cub Air Cleaner 16x25x3 Merv 11
Our Price: $86.99
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Honeywell Trane Perfect Fit 14.5x27x5 BAYFTFR14M 3-Pack
(HTRN1427T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

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Honeywell Trane Perfect Fit 14.5x27x5 BAYFTFR14M 3-Pack
Our Price: $122.00
Retail: $140.00
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Hoover PowerDrive WindTunnel HEPA Vacuum Filter
(40120101)

This Hoover Power-Drive WindTunnel Vacuum Final Filter is a replacement vacuum final filter for Hoover Self-Propelled WindTunnel Upright vacuums with the Hoover Allergen Filtration System.


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Hoover PowerDrive WindTunnel HEPA Vacuum Filter
Our Price: $11.47
Retail: $19.99
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Filters Fast - Air Filters

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