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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 product list


General Aire Fibreboard C5-0526
(4719)

GeneralAire C5-0526 Fiberboard is an internal part attached to the power control board and transformer assembly on GeneralAir SSCB15-X and SSCB7-X Air Cleaner systems.


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General Aire Fibreboard C5-0526
Our Price: $41.99
Retail: $49.99
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General Aire 24V Transformer C5-074D
(4723)

The GeneralAire 4723 fits the following models of air cleaners: GeneralAire SSCB7-WHT GeneralAire SSCB7W-R GeneralAire SSCB15-WHT GeneralAire SSCB15W-R The General Aire 24V Transformer C5-074D is one of the air cleaner's electronic parts. T


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General Aire 24V Transformer C5-074D
Our Price: $41.99
Retail: $49.99
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General Aire 3-Position Switch -Gray- H9-0220
(4717)

The General Aire 3-Position Switch -Gray- H9-0220 fits the following air cleaners: GeneralAire SSCB7-WHT GeneralAire SSCB7W-R GeneralAire SSCB15-WHT GeneralAire SSCB15W-R This GeneralAire part 4717 is the air cleaner's 3-position switch and


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General Aire 3-Position Switch -Gray- H9-0220
Our Price: $51.99
Retail: $59.99
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General Aire On/Off Switch -Black- C5-0221
(4716)

The General Aire On/Off Switch -Black- C5-0221 fits the following models of air cleaners: GeneralAire SSCB7-WHT GeneralAire SSCB7W-R GeneralAire SSCB15-WHT GeneralAire SSCB15W-R The GeneralAire switch C5-0221 is also known as GeneralAire pa


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General Aire On/Off Switch -Black- C5-0221
Our Price: $31.99
Retail: $39.99
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GeneralAire DC4E Elite Dehumidistat Control
(4685)

The GeneralAire DC4E is the correct replacement for the following ventilators: GeneralAire Heat Recovery Ventilators and GeneralAire Energy Recovery Ventilators.

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GeneralAire DC4E Elite Dehumidistat Control
Our Price: $202.69
Retail: $249.99
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GeneralAire TR3 Ventilator Timer Control
(4690)

The GeneralAire TR3 Ventilator Timer Control is a replacement push button timer for all GeneralAire HRV and ERV model recovery ventilators. The TR3 timer allows the user change the humidity level of the HRV and ERV units, as well as override control


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GeneralAire TR3 Ventilator Timer Control
Our Price: $36.99
Retail: $39.99
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Lennox Y2920 Whole House Air Filter Cabinet
(Y2920)

The Lennox Y2920 Whole House Air Filter Cabinet is the correct system that is: Compatible with any HVAC system and does not require an additional power source


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Lennox Y2920 Whole House Air Filter Cabinet
Our Price: $93.75
Retail: $119.00
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GeneralAire 100329 Ventilator Filter Replacement
(4667)

The GeneralAire 100329 Ventilator Filter Replacement is the correct replacement for the following models of energy/heat recovery ventilators: ERV3220 HRV8220 Energy/heat recovery ventilators bring fresh outdoor air into your home while gettin


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GeneralAire 100329 Ventilator Filter Replacement
Our Price: $51.99
Retail: $69.99
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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 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
Retail: $149.99
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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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Lennox X8304 MERV 10 Expandable Filter Kit
(X8304)

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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Special Order. Ships in 6 days.
Lennox X8304 MERV 10 Expandable Filter Kit
Our Price: $101.99
Retail: $104.99
You Save 3%!

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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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Honeywell F300E1001 16x20 Electronic Air Cleaner
(F300E1001)

The Honeywell F300E1001 16x20 Electronic Air Cleaner optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

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Special Order. Ships in 10 days.
Honeywell F300E1001 16x20 Electronic Air Cleaner
Our Price: $501.99
Retail: $599.99
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Magnetic Vent Cover HVAC Air Filter 4x18 100-Pack
(MAGNETIC VENT 4X18)

Add a durable and reusable barrier of protection from hair, dust, and bugs with an easy to install 4x18 Magnetic Vent Cover HVAC Air Filter. Constructed from a soft PVC grid using a polypropylene mesh the filter attaches to your metal register.


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Magnetic Vent Cover HVAC Air Filter 4x18
Our Price: $1,095.00

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Magnetic Vent Cover HVAC Air Filter 8x18 70-Pack
(MAGNETIC VENT 8X18)

Some of the best things in life are simple, like a washable 8x18 Magnetic Vent Cover HVAC Air Filter that installs in no time at all and prevent pesky hair, dirt, and bugs from going into or leaving your air vents.


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Magnetic Vent Cover HVAC Air Filter 8x18
Our Price: $976.50

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Honeywell F300E1035 20x25 Electronic Air Cleaner
(F300E1035)

The Honeywell F300E1035 20x25 Electronic Air Cleaner operates with all gas, oil and electric forced warm air furnaces and air conditioning systems.

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Honeywell F300E1035 20x25 Electronic Air Cleaner
Our Price: $641.99
Retail: $699.99
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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack 12-Pack
(FC2400A1005)

The Honeywell FC2400A1005 is a compatible AC filter for the Aprilaire and Space Gard 2400 (filter model 401) and is also used in Research Products cabinet models 2200, 2250 and 2400. This filter boasts a MERV 10 rating.


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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
Our Price: $561.60

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Hunter 30938 QuietFlo HEPA Purifier Filter 3-Pack
(30938)

The Hunter 30938 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30938 QuietFlo HEPA Purifier Filter
Our Price: $188.58

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Hunter 30960 QuietFlo HEPA Purifier Filter 3-Pack
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 8 days.
Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $210.75

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Hunter 30962 QuietFlo HEPA Purifier Filter
(30962)

The Hunter 30962 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns. This is a true HEPA filter and a genuine OEM Hunter part.


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Hunter 30962 QuietFlo HEPA Purifier Filter
Our Price: $73.99
Retail: $85.00
You Save 13%!

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Hunter 30965 QuietFlo HEPA Purifier Filter 3-Pack
(30965)

The Hunter 30965 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns. This is a true HEPA filter and a genuine OEM Hunter part.


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Hunter 30965 QuietFlo HEPA Purifier Filter
Our Price: $110.97

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Hunter 30925 HEPAtech Purifier Filter 6-Pack
(30925)

The Hunter 30925 HEPAtech v Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


Special Order. Ships in 8 days.
Hunter 30925 HEPAtech Purifier Filter
Our Price: $150.00

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Carrier FILCCCAR0024 Air Purifier Filter 2-Pack 2-Pack
(FILCCCAR0024)

The Carrier FILCCCAR0024 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Carrier, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It fits numerous units including model numbers FIL


Special Order. Ships in 15 days.
Carrier FILCCCAR0024 Air Purifier Filter 2-Pack
Our Price: $143.76

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Filters Fast - Air Filters

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