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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.


Air Filters full product list:


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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In Stock! Ships in 5 to 6 business days.
Lennox X8308 MERV 16 Expandable Filter Kit
Our Price: $131.99
Retail: $149.99
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GeneralAire F1021 MERV 13 16x25x4 Media Filter
(4572)

The General Aire F1021 MERV 13 16x25x4 Media Filter is the correct replacement filter for the GeneralAir TERSus1200, and removes airborne particles and allergens as small as 0.3 micron to improve indoor the air quality of your home dramatically.


In Stock! Ships in 6 to 7 business days.
GeneralAire F1021 MERV 13 16x25x4 Media Filter
Our Price: $53.74
Retail: $59.99
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Bionaire Foam Humidifier Prefilter A0327W 2-Pack
(A0327W)

The Bionaire A0327W Foam Humidifier Prefilter is used to reduce airborne particles & pollutants with Bionaire CP0305 & CP0306 humidifier systems.


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Bionaire Foam Humidifier Prefilter A0327W
Our Price: $9.98

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Honeywell Comfort System Kit YTHX9421R5069
(YTHX9421R5069)

The Honeywell PRESTIGE IAQ 2.0 Comfort System Kit YTHX9421R5069 is a high definition touch screen thermostat for your home. This Honeywell comfort system thermostat can control up to 4 heat/2 cool heat pumps or 3 heat/2 cool conventional systems. Fo

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Honeywell Comfort System Kit YTHX9421R5069
Our Price: $302.85
Retail: $349.99
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FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack 6-Pack
(FFM8PLEAT1)

The FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack is a set of replacement air filters for ideal use as service pleats or prefilters in commercial HVAC systems or industrial air cleaners. These pleated media filters arrive in a 6 pack and are ef


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FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack
Our Price: $239.70

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Trion 3508 Humidifier Filter Pad Replacement
(3508)

The Trion 3508 Humidifier Filter Pad Replacement is a replacement humidifier pad for the Herrmidifier Model 3500 Humidifiers. This Trion humidifier filter is also known as a foam filter belt and measures approximately 16 inches x 11 3/8 inches x 1 1


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Trion 3508 Humidifier Filter Pad Replacement
Our Price: $21.19

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Lennox HCC16-28 Filter Cabinet System MERV 16
(Y2921)

The Lennox HCC16-28 Filter Cabinet System MERV 16 is an air cleaner cabinet that attaches directly to your HVAC system without causing any additional energy costs. The Lennox Healthy Climate HCC16-28 is ideal for whole-house air filtration. The Lenn

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In Stock! Ships in 8 to 9 business days.
Lennox HCC16-28 Filter Cabinet System MERV 16
Our Price: $301.99
Retail: $349.99
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Honeywell F100F2051 25x22 Whole Home Air Purifier
(F100F2051)

The Honeywell F100F2051 25x22 Air Purifier System is applicable to all gas, oil and electric forced air furnaces and to compressor cooling up to 5 tons.

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Honeywell F100F2051 25x22 Whole Home Air Purifier
Our Price: $100.99

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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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Honeywell F300E1001 16x20 Electronic Air Cleaner
Our Price: $762.00
Retail: $999.99
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Honeywell F300E1019 16x25 Electronic Air Purifier
(F300E1019)

THe Honeywell F300E1019 16x25 Electronic Air Purifier optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

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Honeywell F300E1019 16x25 Electronic Air Purifier
Our Price: $571.99
Retail: $599.99
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Honeywell F100F2036 20x20 Whole Home Air Purifier
(F100F2036)

The Honeywell F100F2036 20x20 Whole Home Air Purifier uses a 4-inch extended media that makes replacement quick and easy.

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Honeywell F100F2036 20x20 Whole Home Air Purifier
Our Price: $209.99
Retail: $249.99
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Honeywell F200E1003 16x20 Air Cleaner
(F200E1003)

The Honeywell F200E1003 16x20 Air Cleaner is applicable to all gas, oil and electric forced warm air furnaces and to compressor cooling up to 5 tons.

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Honeywell F200E1003 16x20 Air Cleaner
Our Price: $231.99
Retail: $299.99
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Honeywell HF100F1620 Replacement For Honeywell F100F2028
(F100F2028)

The Honeywell F100F2028 16x20 Media Air Cleaner mounts in the return air duct in any position.

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Honeywell HF100F1620  Replacement For Honeywell F100F2028
Our Price: $145.99
Retail: $199.99
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American Metal Filter RCP0907 Replacement For GE WB2X8293
(RCP0907)

The GE WB2X8293 Compatible Range Hood Filter measures 9" x 10 1/2" x 3/8" (measure your old filter to ensure a perfect fit). This carbon range hood filter is a compatible replacement for the GE WB2X8293 and is not washable. This charcoal filter opti


In Stock! Ships in 7 to 8 business days.
American Metal Filter RCP0907 Replacement For GE WB2X8293
Our Price: $7.09
Retail: $9.99
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American Metal Filter RCP0907 Replacement For GE WB2X8293
(WB2X8293)

The GE WB2X8293 Compatible Charcoal Carbon Filter measures 9 inches x 10 1/2 inches x 3/8 inches (measure your old filter to ensure a perfect fit) and is not washable. This charcoal carbon filter is a compatible replacement for the GE WB2X8293. Char


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American Metal Filter RCP0907 Replacement For GE WB2X8293
Our Price: $7.09
Retail: $9.99
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3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1 4-Pack
(Filtrete-Odor-18241)

The 3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1 effectively removes common odors in your home while also trapping airborne contaminants. This odor filter is constructed with activated carbon to remove odors like pet, smoke, cooking, mildew, a


In Stock! Ships in 12 to 13 business days.
3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1
Our Price: $119.96

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Trion 1000-3000-0101 Replacement Air Filter 2-Pack
(1000-3000-0101)

The Trion 1000-3000-0101 Replacement Air Filter 2-Pack is a replacement air filter for the Trion CAC500 and CAC500 air cleaners. This CAC500M filter features pleated media to trap contaminants and improve overall indoor air quality. This Trion filte

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In Stock! Ships in 20 to 21 business days.
Trion 1000-3000-0101 Replacement Air Filter 2-Pack
Our Price: $217.67
Retail: $299.99
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Filtrete Home Odor Air Filter - 16 x 20 x 1 4-Pack
(Filtrete-Odor-16201)

The Filtrete Home Odor Air Filter - 16 x 20 x 1 is constructed with activated carbon to remove common odors from your home, including pet, smoke, cooking, mildew, and cleaning chemicals. In addition to creating a more breathable atmosphere, this car


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Filtrete Home Odor Air Filter - 16 x 20 x 1
Our Price: $86.44

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Honeywell FC40R1185 Return Air Grille Filter 18x18 5-Pack
(FC40R1185)

The Honeywell FC40R1185 Return Air Grille Filter 18x18 is a replacement air filter that mounts in most return filter grilles. The Honeywell return air grille filter features four inches of depth, which provides a higher efficiency than standard one


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Honeywell FC40R1185 Return Air Grille Filter 18x18
Our Price: $252.50

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Lennox LB-71461 Media Filter 36-in W x 20-ft L
(DLX30025)

The Lennox LB-71461 Media Filter is a 36-in W x 20-ft L roll of media filter that is for air conditioning and central heating systems with hammock filter frames.

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Lennox LB-71461 Media Filter 36-in W x 20-ft L
Our Price: $98.93
Retail: $104.99
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Totaline DTLP102-2020 20x20 MERV 11 Filter
(DTLP102-2020)

The Totaline DTLP102-2020 20x20 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


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Totaline DTLP102-2020 20x20 MERV 11 Filter
Our Price: $40.89
Retail: $46.99
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Totaline DTLP102-2025 20x25 MERV 11 Filter
(DTLP102-2025)

The Totaline DTLP102-2025 20x25 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


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Totaline DTLP102-2025 20x25 MERV 11 Filter
Our Price: $41.99
Retail: $49.99
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Totaline DTLP102-1620 16x20 MERV 11 Filter
(DTLP102-1620)

The Totaline DTLP102-1620 16x20 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


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Totaline DTLP102-1620 16x20 MERV 11 Filter
Our Price: $37.45
Retail: $45.99
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Water Sentinel AF-1 Refrigerator Air Filter 12-Pack
(102565)

Keep the inside of your refrigerator and freezer smelling great with the Water Sentinel AF-1 Refrigerator Air Filter.


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Water Sentinel AF-1 Refrigerator Air Filter
Our Price: $167.40

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Goodman GDMHEPA400 Whole House HEPA Air Purifier
(GDMHEPA400)

The Goodman GDMHEPA400 Whole House HEPA Air Purifier is a high-efficiency air purifier is a True HEPA air cleaner that is engineered to improve the quality of indoor air.

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Special Order. Ships in 10 days.
Goodman GDMHEPA400 Whole House HEPA Air Purifier
Our Price: $340.99
Retail: $399.99
You Save 15%!

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Filters Fast - Air Filters

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