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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?
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?
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Air Filters full product list:


Lennox Y2920 Whole House Air Filter Cabinet - Genuine Lennox Part
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Retail: $118.99

Our Price: $99.95

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Trion 3508 Humidifier Filter Pad Replacement

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Retail: $34.95

Our Price: $29.95

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American Metal Filter RCP0907 Replacement Range Hood Filter

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Retail: $19.99

Our Price: $14.99

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American Metal Filter RCP0907 Replacement For GE WB2X8293

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Retail: $19.99

Our Price: $14.99

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Honeywell F200E1003 16x20 Air Cleaner
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Retail: $299.99

Our Price: $232.99

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Honeywell HF100F1620  Replacement For Honeywell F100F2028
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Retail: $199.99

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Honeywell  HF100F1625 16x25x4 Replacement for Honeywell F100F2002
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Retail: $149.99

Our Price: $134.95

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Honeywell F100F2036 20x20 Whole Home Air Purifier
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Retail: $249.99

Our Price: $159.95

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Honeywell F100F2044 25x20 Whole House Air Cleaner
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Retail: $145.99

Our Price: $124.69

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Honeywell F100F2051 25x22 Whole Home Air Purifier
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Retail: $118.99

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Honeywell F300E1001 16x20 Electronic Air Cleaner
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Honeywell F300E1019 16x25 Electronic Air Purifier
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AMP-G8-1056 Replacement for Goodman G13MU2025 - 4-Pack
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Retail: $399.99

Our Price: $324.95

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FiltersFast FFMH-004 Replacement For GE WB06X10359

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Retail: $19.99

Our Price: $14.99

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Lennox LB-71461 Media Filter 36-in x 20-ft - 30025
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Retail: $116.99

Our Price: $99.93

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Hunter 30938 QuietFlo HEPA Purifier Filter
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Our Price: $191.58

Hunter 30965 QuietFlo HEPA Purifier Filter
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Honeywell FC2400A1005 Replacement for Aprilaire SpaceGard 2400 - 12-Pack
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Our Price: $573.60

Carrier 356066-1202 Charcoal Filter for EACBAXCC00
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Carrier 356066-1201 Charcoal Filter EACBAXCC0020
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Carrier 49BB680044 Humidifier Filter Replacement
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Retail: $79.99

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Carrier 318501-761 Humidifier Water Filter Pad
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Retail: $34.99

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GeneralAire 201-12880 MERV 11 Filter Media
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Our Price: $458.91

GeneralAire 14003 Replacement Air Cleaner Cabinet
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Retail: $134.99

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GeneralAire R2-0855 Air Cleaner Prefilter
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Retail: $39.99

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