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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?

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:


Honeywell FC100A1052 12.5" x 20" Media Air Filter
(FC100A1052)

The Honeywell FC100A1052 12.5" x 20" Replacement Air Filter boasts an upgraded MERV 11 rating (based on ASHRAE Standard 52.2) and is used with the Honeywell Enviracaire F27F1032 Air Cleaner.


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Honeywell FC100A1052 12.5" x 20" Media Air Filter
As Low As: $29.00
Retail: $49.02
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Whirlpool Refrigerator Air Filter System W10153422
(W10153422)

The Whirlpool W10153422 Refrigerator Air Filter and Housing installs easily into 22 - 25 cu. ft. Whirlpool and KitchenAid side by side refrigerators with air vents in the snack drawer. The activated carbon in this Whirlpool refrigerator air filter


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Whirlpool Refrigerator Air Filter System W10153422
Our Price: $15.99
Retail: $16.99
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Odor Killer Return Grille Air Filter - MERV 8, 5"
(FFRAGGM)

The Odor Killer Return Grille Air Filter eliminates smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air. Since this return grille air filter is 5" deep compared to the standard 1" air filter, its greater surfac


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Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $29.99
Retail: $45.99
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Whirlpool Air Purifier Whispure 250 (Medium Room)
(AP25030K)

The Whirlpool Whispure 250 (AP25030K) is a home air purifier which filters the dust, dander, pollen, mold spores, smoke, fabric fibers, allergens, and other contaminants in your air. The Whirlpool Whispure 250 air purifier features a true HEPA air pu

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Whirlpool Air Purifier Whispure 250 (Medium Room)
Our Price: $199.99
Retail: $229.00
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Whirlpool Air Purifier Whispure 450 (Large Room)
(AP45030K)

The Whirlpool Whispure 450 (AP45030K) is a home air purifier which filters the dust, dander, pollen, mold spores, smoke, fabric fibers, allergens, and other contaminants in your air. The Whirlpool Whispure 450 air purifier features a True HEPA air pu

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Whirlpool Air Purifier Whispure 450 (Large Room)
Our Price: $249.99
Retail: $289.00
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Whirlpool AP51030K Air Purifier 510 (Large Room)
(AP51030K)

The Whirlpool Whispure 510 (AP51030K) is a home air purifier which filters the dust, dander, pollen, mold spores, smoke, fabric fibers, allergens, and other contaminants in your air. The Whirlpool Whispure 510 air purifier features a True HEPA air p

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Whirlpool AP51030K Air Purifier 510 (Large Room)
Our Price: $299.99
Retail: $375.00
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Hunter Permalife 30967 Replacement Air Filter
(30967)

The Hunter PermaLife 30967 Air Filter is a direct replacement air filter for Hunter PermaLife systems, specifically Hunter PermaLife models 30755, 30756, and 30757.

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Hunter Permalife 30967 Replacement Air Filter
Our Price: $85.99
Retail: $89.99
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Hunter 30963 HEPAtech Filter for 30710
(30963)

The Hunter 30963 HEPAtech Filter Replacement is a replacement air filter for certain Hunter HEPAtech Air Purifier Systems, specifically the Hunter HEPAtech 30710, Hunter HEPAtech 30711, Hunter HEPAtech 30714, and Hunter HEPAtech 30721A.


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Hunter 30963 HEPAtech Filter for 30710
Our Price: $35.95
Retail: $39.95
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French Scents Air Filter Freshener - Fresh Flowers
(86117)

The French Scents Air Filter Freshener (86117 Fresh Flowers scent) is a whole home air freshener packet that is easily attached to any air filter to provide scented air throughout your entire home, business, or other indoor area.


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French Scents Air Filter Freshener - Fresh Flowers
Our Price: $3.99

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Honeywell HDC-200 Humidifier Filters 2-Pack
(HDC-200)

The Honeywell HDC-200 Humidifier Filter is a genuine Honeywell Demineralization Cartridge. This humidifier filter replacement comes in a package of 2 filter cartridges.

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Honeywell HDC-200 Humidifier Filters
Our Price: $17.98

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3M Filtrete OAC200 Replacement Air Cleaner Filter 6-Pack
(OAC200RF)

The 3M Filtrete OAC200 Replacement Air Cleaner Filter is a replacement filter for the 3M Filtrete OAC200 Office Air Cleaner.


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3M Filtrete OAC200 Replacement Air Cleaner Filter 6-Pack
Our Price: $45.99
Retail: $49.99
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GeneralAire AC-1 Filter 20x24x5 MERV 13 (2 PACK)
(FFC20245GAM13)

The GeneralAire AC-1 Air Filter 20x24x5 is a cost-effective compatible version of the genuine 20x24x5 General Filter AC-1 Air Filters.


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GeneralAire AC-1 Filter 20x24x5 MERV 13 (2 PACK)
Our Price: $61.00
Retail: $80.00
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GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
(FFC20245GAM8)

GeneralAire AC-1 Air Filter 20x24x5 is an economical alternative for the OEM GeneralAire AC-1 Air Filter 20x24x5. This furnace filter is part of the GeneralAire AC-1 Series of Residential Air Cleaner Replacement Filters.


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GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
Our Price: $57.99
Retail: $79.99
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Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
(FFC23205TRNM8)

For an economical compatible version of the genuine OEM Trane BAYFTAH23M 21x23.5x5 Perfect Fit Filter, try this MERV 8 Trane 21x23.5x5 Perfect Fit BAYFTAH23M replacement filter.


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Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
Our Price: $51.00
Retail: $70.00
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Aprilaire 104 Replacement Filter - Aprilaire 2140
(Aprilaire 104)

The Aprilaire 104 Replacement Filter is a genuine replacement media for the Aprilaire 2140 Air Cleaner.


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Aprilaire 104 Replacement Filter - Aprilaire 2140
Our Price: $35.99
Retail: $39.99
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Baby's Room Vent Filter Kit
(VC-B)

The BestAir Baby's Room Vent Filter is a large 12" x 14" cut-to-fit, electrostatic and carbon filter that helps to reduce airborne pollutants such as pollen, dust, dirt, bacteria, mold spores, pet dander and hair.


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Baby's Room Vent Filter Kit
Our Price: $6.99
Retail: $7.99
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Carrier 88NH1520B101 Humidifier Filter
(88NH1520B101)

The Carrier 88NH1520B101 Humidifier Filter is the correct replacement for your Carrier 49BA002 Humidifier. This humidifier filter features an aluminum mesh design with metal frame. The humidifier filter helps to generate the humidity you rely on dur


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Carrier 88NH1520B101 Humidifier Filter
Our Price: $63.16
Retail: $79.99
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Holmes APF6 Air Purifier Carbon Pre-Filter
(APF6)

The Holmes APF6 carbon pre-filter is for use in your Holmes HAP 292 air purifier. This Holmes air pre-filter will remove large particles from the air. The Holmes APF6 air purifier works with 3 air filters, the pre-filter, hepa air filter and carbon


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Holmes APF6 Air Purifier Carbon Pre-Filter
Our Price: $10.99
Retail: $11.99
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Holmes HAPF91CS Purifier Carbon Filter
(HAPF91CS)

The Holmes HAPF91 Carbon Filter is a Genuine OEM Holmes Filter that measures 39.2 x 4.3 x 0.2". The average lifetime of this Holmes air filter, depending upon air quality. This Holmes HAPF91 Carbon Filter comes 2 filters per pack.


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Holmes HAPF91CS Purifier Carbon Filter
Our Price: $14.99
Retail: $18.98
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Parker/Dominick Hunter 025AO Coalescing Filter
(025AO Element)

The Parker Dominic Hunter coalescent filter is for use in your compressed air purification system. This pre filter element is a coalescing air filter that will remove particles down to as small as 1 micron in size. This 1 micron filter can remove wa

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Parker/Dominick Hunter 025AO Coalescing Filter
Our Price: $221.40
Retail: $304.43
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Zander 2050XP High Pressure Filter Element
(2050XP)

The Zander 2050XP is the correct replacement for the following compressor: Zander Air Compressor.

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Zander 2050XP High Pressure Filter Element
Our Price: $366.40
Retail: $417.60
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Pollenex FP105 Purifier Carbon PreFilter 2-Pack
(RPP105M)

The Pollenex FP105 Purifier Carbon PreFilter-2 Pack fits the following models of ashtray air cleaners: Pollenex AT100 Pollenex AT101 Pollenex AT102 Holmes HAP70 These carbon prefilters are Pollenex replacement carbon ashtray filters. These


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Pollenex FP105 Purifier Carbon PreFilter
Our Price: $4.00

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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


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Lennox 69H98 Air Cleaner Carbon Filter
Our Price: $76.99
Retail: $79.99
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Lennox 72H03 Air Cleaner Filter Cell
(72H03)

This Lennox 72H03 Air Cleaner Filter Cell is a high quality filter cell that provides effective air filtration. The Lennox 72H03 Air Cleaner Filter Cell is a Genuine Lennox replacement filter for central air cleaners.

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Lennox 72H03 Air Cleaner Filter Cell
Our Price: $330.40
Retail: $349.99
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Holmes HAPF94CS Carbon Odor Filter for HAP575
(HAPF94CS)

The Holmes HAPF94CS Carbon Odor Filter for HAP575 is a replacement carbon filter for the Holmes HAP575 HEPA Air Purifier. This carbon odor filter measures approximately 18 1/4" x 11 1/4" and reduces impurities and particulates from air. In addition,


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Holmes HAPF94CS Carbon Odor Filter for HAP575
Our Price: $15.99
Retail: $19.99
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