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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:


GeneralAire AC-1 Filter 20x24x5 MERV 13 (2 PACK)

This item has been discontinued. Please review the product description for more information.

Retail: $79.99

Our Price: $62.00

Save 22%!

GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)

This item has been discontinued. Please review the product description for more information.

Retail: $79.99

Our Price: $58.99

Save 26%!

Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk

This item has been discontinued. Please review the product description for more information.

Retail: $69.99

Our Price: $52.00

Save 26%!

Aprilaire 104 Replacement Filter - Aprilaire 2140

This item has been discontinued. Please review the product description for more information.

Retail: $42.99

Our Price: $36.99

Save 14%!

Baby's Room Vent Filter Kit

This item has been discontinued. Please review the product description for more information.

Retail: $8.99

Our Price: $7.99

Save 11%!

BestAir CF-2 Ceiling Fan Air Filter

This item has been discontinued. Please review the product description for more information.

Our Price: $9.98

Carrier 88NH1520B101 Humidifier Filter

This item has been discontinued. Please review the product description for more information.

Retail: $79.99

Our Price: $64.16

Save 20%!

Holmes APF6 Air Purifier Carbon Pre-Filter

This item has been discontinued. Please review the product description for more information.

Retail: $12.99

Our Price: $11.99

Save 8%!

Holmes HAPF91CS Purifier Carbon Filter

This item has been discontinued. Please review the product description for more information.

Retail: $18.99

Our Price: $15.99

Save 16%!

Parker/Dominick Hunter 025AO Coalescing Filter
FREE SHIPPING!

within the continental U.S.

This item has been discontinued. Please review the product description for more information.

Retail: $304.99

Our Price: $222.40

Save 27%!

Zander 2050XP High Pressure Filter Element
FREE SHIPPING!

within the continental U.S.

This item has been discontinued. Please review the product description for more information.

Retail: $431.99

Our Price: $367.40

Save 15%!

Pollenex FP105 Purifier Carbon PreFilter

This item has been discontinued. Please review the product description for more information.

Our Price: $6.00

Lennox 69H98 Air Cleaner Carbon Filter
FREE SHIPPING!

within the continental U.S.

This item has been discontinued. Please review the product description for more information.

Retail: $90.99

Our Price: $77.99

Save 14%!

Lennox 72H03 Air Cleaner Filter Cell
FREE SHIPPING!

within the continental U.S.

This item has been discontinued. Please review the product description for more information.

Retail: $388.99

Our Price: $331.40

Save 15%!

Holmes HAPF94CS Carbon Odor Filter for HAP575

This item has been discontinued. Please review the product description for more information.

Retail: $19.99

Our Price: $16.99

Save 15%!

Essick Air 1102 Electrostatic and Carbon PreFilter
FREE SHIPPING!

within the continental U.S.

This item has been discontinued. Please review the product description for more information.

Our Price: $95.70

Essick Air 1104 Carbon PreFilter Replacement

This item has been discontinued. Please review the product description for more information.

Our Price: $66.18

Duracraft HEP-5020 Air Cleaner Filter Replacement

This item has been discontinued. Please review the product description for more information.

Retail: $66.99

Our Price: $45.99

Save 31%!

Duracraft HEP-5030 Replacement HEPA Filter

This item has been discontinued. Please review the product description for more information.

Retail: $69.99

Our Price: $50.99

Save 27%!

Bionaire A1260C Carbon PreFilter 4-Pack

This item has been discontinued. Please review the product description for more information.

Retail: $29.99

Our Price: $21.99

Save 27%!

FiltersFast MERV 8 Odor Killer 2" 6-Pack

This item has been discontinued. Please review the product description for more information.

Retail: $99.99

Our Price: $51.99

Save 48%!

FiltersFast 4" MERV 8 Odor Killer Filter 6-Pack

This item has been discontinued. Please review the product description for more information.

Retail: $75.99

Our Price: $64.99

Save 14%!

FiltersFast 5" Trion Compatible Air Filter 2-Pack

This item has been discontinued. Please review the product description for more information.

Retail: $54.99

Our Price: $46.99

Save 15%!

FiltersFast 5" Aprilaire Compatible Filter 2-Pack

This item has been discontinued. Please review the product description for more information.

Retail: $69.99

Our Price: $55.99

Save 20%!

FiltersFast 5" WR Compatible FFC20265WR OKGM

This item has been discontinued. Please review the product description for more information.

Retail: $87.99

Our Price: $74.99

Save 15%!

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