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Air Filter Shield

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:


Honeywell FC40R1102 Return Grille Filter-14x14x3

In Stock!
Ships in 3 to 4 business days.

Retail: $49.99

Our Price: $44.95

Save 10%!

Honeywell FC40R1060 16x25 Return Air Grille Filter

In Stock!
Ships in 2 to 3 business days.

Retail: $59.99

Our Price: $49.99

Save 17%!

Trion 255649-101 Air Bear Media AC Filter 16x25x3 6-Pack
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 1 business day

Retail: $131.99

Our Price: $106.95

Save 19%!

BioStrike CFF Ceiling Fan Air Filter - 93880
Special Order.
Ships in 4 to 5 days.

Retail: $14.99

Our Price: $12.49

Save 17%!

FiltersFast FF 30915 Replacement for Hunter 30915
In Stock!
Ships in 1 business day

Retail: $19.99

Our Price: $14.95

Save 25%!

Lennox X8310 MERV 11 Expandable Filter Replacement

In Stock!
Ships in 4 to 5 business days.

Retail: $49.99

Our Price: $44.95

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FiltersFast 711D R Replacement For Bionaire 711D Air Cleaner Filter

In Stock!
Ships in 2 to 3 business days.

Retail: $19.99

Our Price: $15.95

Save 20%!

FiltersFast FFC16253TABM13 Replacement for Trion 16x25x3 Air Bear MERV13 3-Pack
FREE SHIPPING!

within the continental U.S.


In Stock!
Ships in 1 to 2 business days.

Retail: $99.99

Our Price: $79.95

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FiltersFast FFC16255TABM8 Replacement For Trion AB-51625-8

In Stock!
Ships in 2 to 3 business days.

Retail: $69.99

Our Price: $39.95

Save 43%!

Trion Air Bear 259112-101 Cub Filter 16x25x3 MERV 11

Out of stock

Retail: $32.99

Our Price: $28.99

Save 12%!

Filtrete Odor Reduction Air Filter - 14 x 24 x 1
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Ships in 1 business day

Retail: $179.99

Our Price: $29.95

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FiltersFast Replacement for GeneralAire 6FM1625 - MERV11, 16x25x5 - 2-Pack

In Stock!
Ships in 1 to 2 business days.

Retail: $69.99

Our Price: $49.95

Save 29%!

FiltersFast 1" Air Filters MERV 11 Replacement for Nordic Pure MERV 10 6-Pack

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Ships in 1 to 2 business days.

Retail: $87.99

Our Price: $69.95

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FiltersFast 1" Air Filters MERV 11 Replacement for Aerostar 1" MERV 11 6-Pack

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Ships in 1 to 2 business days.

Retail: $77.99

Our Price: $69.95

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FiltersFast 1" MERV 11 Replacement For Honeywell 14x14x1 MERV 11 6-Pack

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Ships in 1 to 2 business days.

Retail: $69.99

Our Price: $69.95

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Lennox 72H02 Whole House System Air Filter

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Ships in 4 to 5 business days.

Retail: $29.99

Our Price: $26.95

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Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
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Retail: $14.99

As Low As: $11.99

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FiltersFast FFC16255HON 16x25x5 MERV 11 Air Filter - 2-Pack

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Ships in 1 to 2 business days.

Retail: $94.99

Our Price: $49.95

Save 47%!

GeneralAire 4368 Replacement for GeneralAire 4356 Filter Media

Out of stock

Retail: $49.99

Our Price: $34.99

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Honeywell TRN2621T1 Replacement for Trane BAYFTAH26M, 26x21x5 Perfect Fit - 3-Pack
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 1 business day

Retail: $166.99

Our Price: $149.95

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BestAir A10WPR Replacement for Carrier P1101045 Humidifier Filter
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Retail: $19.99

As Low As: $13.99

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Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1
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Ships in 1 business day

Retail: $29.99

Our Price: $25.95

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Totaline P102-1620 16x20 MERV 11 Filter

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Ships in 1 to 2 business days.

Retail: $45.99

Our Price: $39.99

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FiltersFast FFC16205HONM13 Replacement for Honeywell FC100A1003

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Ships in 1 to 2 business days.

Retail: $78.99

Our Price: $64.95

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Honeywell FC40R1144 Return Air Filter - 20x24

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Ships in 1 to 2 business days.

Retail: $69.99

Our Price: $54.95

Save 21%!

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