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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:


Hoover SteamVac Vacuum Filter Recovery Tank F5851
(38762010)

This Hoover SteamVac Vacuum Filter is a Hoover replacement vacuum cleaner filter for the Hoover SteamVac and the Hoover Extractor. It fits Hoover models: F5815, F5817, F5821, F5825, F5827, F5831-900, F5833-900, F5859-900, F5863-900, F5858-920.


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Hoover SteamVac Vacuum Filter Recovery Tank F5851
Our Price: $13.08

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$2,000 Premium Fiberglass Air Filter
(Air 2000)

How does one simple fiberglass air filter cost $2,000? Must be one really good air filter, right?

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$2,000 Premium Fiberglass Air Filter
Our Price: $2,001.00

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American Metal Filter Replacement For GE WB02X10776
(OEMRCP0410)

This is a Replacement Microwave Filter (OEMRCP0410) made by American Metal Filter Company which is a compatible microwave filter replacement primarily for the GE WB02X10776 filter. This microwave filter is a combination filter composed of


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American Metal Filter Replacement For GE WB02X10776
Our Price: $12.99
Retail: $14.99
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Honeywell Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
(HTRN2127T1)

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 Filter 21x27x5 BAYFTFR21M
Our Price: $154.50
Retail: $179.99
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Trion Air Bear Supreme 20x20 Media Air Cleaner
(455602-225)

The Trion Air Bear Supreme 20x20 Media Air Cleaner, part number 455604-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles such as grease and soot from your air.

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Trion Air Bear Supreme 20x20 Media Air Cleaner
Our Price: $111.99
Retail: $120.74
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Honeywell FC200E1003 MERV 13 Media Filter-16x20x5
(FC200E1003)

The Honeywell FC200E1003 Media Filter fits all Honeywell 16x20 Air Cleaners including the F200E Enviracaire Elite Series and others. Genuine Honeywell Part.


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Honeywell FC200E1003 MERV 13 Media Filter-16x20x5
As Low As: $77.49
Retail: $79.99
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Lennox 69H85 Whole House Air Purifier Filter 6-Pack
(69H85)

The Lennox 69H85 Whole House Air Purifier Filter is a replacement air filter for the EAC12-14 and EAC-14 Healthy Climate Electronic Air Cleaner from Lennox. This washable pre-filter traps large pollutants, like dust and dirt particles, and helps you


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Lennox 69H85 Whole House Air Purifier Filter
Our Price: $71.10

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Lennox 72H09 EAC-2000 Carbon Filter Replacement
(72H09)

The Lennox 72H09 EAC-2000 Carbon Filter Replacement is a replacement carbon air filter for the Lennox EAC-20 and EAC-2000 air cleaners. This charcoal filter is an genuine Lennox part and is made from high quality construction material.


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Lennox 72H09 EAC-2000 Carbon Filter Replacement
Our Price: $80.82
Retail: $111.40
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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N43)

The Lennox 98N43 MERV 8 Pleated Furnace Filters 4-Pack is the correct replacement for all furnaces that require a 20x20x1 filter. These Lennox Healthy Climate filters remove particles and bioaerosols as small as 3 microns


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Lennox 98N43 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $95.00

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Lennox 98N44 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N44)

This Lennox 98N44 MERV 8 Pleated Furnace Filters 4-Pack package is pleated filters that capture airborne particles and allergens between three to ten microns in size. The Lennox 98N44 MERV 8 filters come in this cost-cutting 4-pack package.


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Lennox 98N44 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $39.99

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Lennox 98N45 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N45)

This Lennox 98N45 MERV 8 Pleated Furnace Filters 4-Pack serve as an excellent choice to upgrade from the generic fiberglass filters in your local hardware store. The healthy climate filters come in this money-saving 4-pack package.


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Lennox 98N45 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $42.96

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Lennox 98N46 MERV 8 Pleated Furnace Filter 4-Pack 4-Pack
(98N46)

This Lennox 98N46 MERV 8 Pleated Furnace Filters 4-Pack serves as an excellent choice to upgrade from the generic fiberglass filters in your local hardware store. The healthy climate filters come in this money-saving 4-pack package.


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Lennox 98N46 MERV 8 Pleated Furnace Filter 4-Pack
Our Price: $37.96

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Lennox 91X23 MERV 8 Pleated Air Filters 4-Pack
(91X23)

The Lennox 91X23 is a furnace and air conditioning filter that reduces the following allergens: Dust Pollen Mold spores


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Lennox 91X23 MERV 8 Pleated Air Filters 4-Pack
Our Price: $31.95
Retail: $38.95
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Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack 4-Pack
(91X24)

The Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack is a set of pleated air filters that measures approximately 15x20x1 and has an a MERV 8 rating. This air conditioner filter arrives in a convenient 4 pack, which will last up to one year.


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Lennox 91X24 MERV 8 Pleated Air Filters 4-Pack
Our Price: $37.95

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Lennox 91X25 MERV 8 Pleated Air Filters 4-Pack
(91X25)

The Lennox 91X25 MERV 8 Pleated Air Filters 4-Pack is a replacement set of pleated air filters that arrives in a 4 pack. These Healthy Climate furnace filters boast a MERV 8 rating, which can reduce mold spores, dust, and tiny particles from your ai


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Lennox 91X25 MERV 8 Pleated Air Filters
Our Price: $35.96

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Lennox X6661 Healthy Climate Filter Cabinet
(X6661)

The Lennox X6661 Healthy Climate Filter Cabinet is a replacement filter cabinet for Lennox Healthy Climate air cleaner models HC10 and HC 16. This air filter cabinet measures approximately 20x25x5 and is also known as the HCC20-28.

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Lennox X6661 Healthy Climate Filter Cabinet
Our Price: $89.99
Retail: $120.95
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Lennox X6666 MERV 16 Pleated Air Filter Media 5-Pack
(X6666)

This Lennox Box Filter is a genuine MERV 16 filter. The Lennox Furnace Filter Box should only be replaced every six months.

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Lennox X6666 MERV 16 Pleated Air Filter Media
Our Price: $509.75

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Lennox X7751 HCC20-28 Replacement Filter Cabinet
(X7751)

The Lennox X7751 replacement Healthy Climate Cabinet is used in air conditioning systems to provide whole house filtration. The metal construction provides durability for year round home comfort with little maintenance. The unit is not powered for r

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Lennox X7751 HCC20-28 Replacement Filter Cabinet
Our Price: $301.95
Retail: $349.99
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Lennox X8308 MERV 16 Expandable Filter Kit
(X8308)

This Lennox Expandable Filter is a genuine Lennox part. The Lennox Healthy Climate Filter is a viable replacement for several Air Cleaner Models.

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Lennox X8308 MERV 16 Expandable Filter Kit
Our Price: $131.99
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Lennox X8344 MERV 16 Filter Upgrade Kit
(X8344)

The Lennox X8344 MERV 16 Filter Upgrade Kit is an upgrade kit for the Lennox PCO-20C Healthy Climate PureAir Air Purification System. This Lennox PureAir filter kit includes one MERV 16 filter, also known by part number X6669, and six UV bulbs.

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Lennox X8344 MERV 16 Filter Upgrade Kit
Our Price: $275.27
Retail: $299.99
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Lennox X8346 MERV 16 Filter Upgrade Kit
(X8346)

The Lennox X8346 MERV 16 Filter Upgrade Kit is the correct upgrade for the following whole-house purification system: Lennox PureAir PCO 12C This Lennox upgrade kit contains 4 PureAir UV-A lamps, and 1 PureAir MERV 16 filter. This upgrade kit

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Lennox X8346 MERV 16 Filter Upgrade Kit
Our Price: $190.19
Retail: $215.00
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Lennox X8347 MERV 16 Filter Upgrade Kit
(X8347)

The Lennox X8347 is the correct replacement for the following air cleaner: Lennox PureAir Healthy Climate PCO-12C Air Purification System

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Lennox X8347 MERV 16 Filter Upgrade Kit
Our Price: $289.99
Retail: $326.95
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Lennox X8305 MERV 10 Expandable Filter Kit
(X8305)

The Lennox X8305 MERV 10 Expandable Filter Kit is a filter kit that includes a replacement expandable furnace filter and a replacement inner housing reusable filter frame. This expandable filter measures approximately 20x20x5.


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Lennox X8305 MERV 10 Expandable Filter Kit
Our Price: $60.99
Retail: $99.99
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Lennox X8306 MERV 16 Expandable Filter Kit
(X8306)

The Lennox X8306 expandable filter is a MERV 16 furnace filter for your home. This Lennox healthy climate filter measures 16x25x5 inches.

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Lennox X8306 MERV 16 Expandable Filter Kit
Our Price: $142.00
Retail: $169.99
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Lennox X8303 MERV 10 Expandable Filter Kit
(X8303)

The Lennox X8303 MERV 10 Expandable Filter Kit is the correct replacement for several models of the following brands of air cleaners: Bryant & Carrier Honeywell Lennox Trion This Lennox Healthy Climate filter kit contains one filter and


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Lennox X8303 MERV 10 Expandable Filter Kit
Our Price: $49.50
Retail: $49.99
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