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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


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


Special Order. Ships in 7 days.
GeneralAire 100329 Ventilator Filter Replacement
Our Price: $51.99
Retail: $69.99
You Save 26%!

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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.


Special Order. Ships in 3 days.
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 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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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.


Special Order. Ships in 5 days.
Hunter 30965 QuietFlo HEPA Purifier Filter
Our Price: $110.97

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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.


Special Order. Ships in 5 days.
Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
Our Price: $561.60

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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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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.


Special Order. Ships in 7 days.
Holmes HAPF96 Air Purifier Carbon PreFilter
Our Price: $9.00

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Holmes HAPF91 Purifier Carbon PreFilter 25 2-Pack
(ROHAPF91M)

This Holmes HAPF91 carbon odor filter, a Genuine OEM Holmes Filter, can trap up to 4,000 odors and impurities from your home. The Holmes carbon filter comes 2 per pack.


Special Order. Ships in 1 days.
Holmes HAPF91 Purifier Carbon PreFilter 25
Our Price: $167.00

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Spacegard Aprilaire 2600 Filter Media Replacement 10-Pack
(Aprilaire 261)

This genuine Spacegard Aprilaire 2600 Filter Media Replacement, also known as the Aprilaire 261 Filter, is the replacement filter used in the Spacegard Aprilaire 2600 Air Cleaner. The Aprilaire 261 Air Filter / Aprilaire 2600 Replacement Filter is a


Special Order. Ships in 7 days.
Spacegard Aprilaire 2600 Filter Media Replacement
Our Price: $639.90

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Carrier 356066-1201 Charcoal Filter EACBAXCC0020 2-Pack
(356066-1201)

The Carrier 356066-1201 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


Special Order. Ships in 7 days.
Carrier 356066-1201 Charcoal Filter EACBAXCC0020
Our Price: $96.96

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Holmes HAPF220 Purifier Carbon PreFilter
(ROHAPF220CSM)

The Holmes HAPF220 Purifier Carbon PreFilter-2 Pack fits the following models of Holmes air purifiers: HAP222 HAP223 HAP2234 HAP412 HAP412G HAP422B HAP422G This air purifier pre filter reduces odors such as pet odors, musty odors, cookin


Special Order. Ships in 9 days.
Holmes HAPF220 Purifier Carbon PreFilter
Our Price: $6.49
Retail: $7.49
You Save 13%!

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Holmes HAPF41 Air Purifier Carbon Prefilter 2-Pack
(ROHAPF41M)

The Holmes HAPF41 Air Purifier Carbon PreFilter-2 Pack is a replacement pack of carbon pre-filters for the Holmes HAP-300 and Holmes HAP-3004 air purifiers. This two pack of carbon filters protects the HEPA filter of your Holmes air cleaner and prev


Special Order. Ships in 31 days.
Holmes HAPF41 Air Purifier Carbon Prefilter
Our Price: $17.96

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Lennox 69H98 Air Cleaner Carbon Filter
(69H98)

The Lennox 69H98 Air Cleaner Carbon Filter is a replacement air filter for the Lennox EAC12-14 and EAC-14 series air cleaners. This carbon filter replaces part number 69H9801 and is a genuine Lennox part that is constructed from high quality materia


Discontinued Product Read Description.
Lennox 69H98 Air Cleaner Carbon Filter
Our Price: $76.99
Retail: $79.99
You Save 4%!

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FiltersFast Custom Size MERV-13 Filters 6 Pack
(FFCAFM13)

FiltersFast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! FiltersFast Air Filters are now available in custom sizes! View details for order guidelines...


Discontinued Product Read Description.
FiltersFast Custom Size MERV-13 Filters 6 Pack
Our Price: $41.00

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FiltersFast Custom Size Air Filters 6 Pack
(FFCAF)

FiltersFast Air Filters are an economical alternative if you're looking for a quality air filter without paying a premium price! FiltersFast Air Filters are now available in custom sizes! View details for order guidelines.


Discontinued Product Read Description.
FiltersFast Custom Size Air Filters 6 Pack
Our Price: $41.00

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Hamilton Humidifier Evaporator Pad EP-039 24-Pack
(EP-039)

The Hamilton EP-039 is the correct replacement for the following humidifier: Hamilton 6HP "Under the Duct" whole house drum humidifier The Hamilton Humidifier Evaporator Pad EP-039 collects moisture inside the humidifier, then converts it into


Discontinued Product Read Description.
Hamilton Humidifier Evaporator Pad EP-039
Our Price: $503.76

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