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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:


BestAir R14ALLM Replacement For Bemis 1104 2-Pack
(Bemis 1104 1 R)

The Bemis 1104 is the correct replacement for the following air purifier: Bemis True HEPA Air Purification System 127-001.


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BestAir R14ALLM Replacement For Bemis 1104 2-Pack
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BestAir R14ALLM Replacement For Bionaire 115-CS 2-Pack
(Bionaire 115-CS 1 R)

The Bionaire 115-CS Carbon PreFilter 2-Pack is a replacement carbon pre-filter for several Bionaire air purifier models that reduces households odors from sources such as cooking or smoke. This carbon filter arrives in a 2 pack and traps dust and la


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BestAir R14ALLM Replacement For Bionaire 115-CS 2-Pack
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BestAir R14ALLM Replacement For Bionaire A0802C 2-Pack
(Bionaire A0802C 1 R)

The Bionaire A0802C Carbon Pre-Filter comes in a convenient 2 pack. This two pack of carbon prefilters is for use in your Bionaire SH0840 Air Purifier. These carbon prefilters will trap unpleasant odors and have 9.6" x 9.3" x 0.2" dimensions.


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BestAir R14ALLM Replacement For Bionaire A0802C 2-Pack
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BestAir R14ALLM Replacement For Bionaire A1000C 2-Pack
(Bionaire A1000C 1 R)

The Bionaire A1000C Carbon PreFilter 2-Pack is the correct replacement for the following models of Bionaire air cleaners: SH1240 SH1260 SH1840 SH1860 This carbon prefilter's dimensions are 11.5" x 11.5" x 0.2". This Bionaire prefilter traps


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BestAir R14ALLM Replacement For Bionaire A1000C 2-Pack
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BestAir R14ALLM Replacement For Bionaire A1260C 2-Pack
(Bionaire A1260C 1 R)

This Bionaire A1260C Carbon PreFilter 2-Pack is a charcoal-activated filter pack which effectively absorbs and eliminates common household odors. The Bionaire A1260C Carbon PreFilter comes in a money-saving 2-pack package.


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BestAir R14ALLM Replacement For Bionaire A1260C 2-Pack
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BestAir R14ALLM Replacement For GE P00633 2-Pack
(GE P00633 1 R)

The GE P00633 Carbon PreFilter 2-Pack is a carbon pre-filter that fits the GE 106633 model air cleaner. This carbon filter for air cleaners measures approximately 15.5" x 20.5" x 0.25" and traps large airborne particulates.


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BestAir R14ALLM Replacement For GE P00633 2-Pack
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BestAir R14ALLM Replacement For Kenmore 83134 2-Pack
(KENMORE 83134 1 R)

The Kenmore 83134 Carbon PreFilter comes in this money-saving 2-pack package. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


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BestAir R14ALLM Replacement For Kenmore 83134 2-Pack
Our Price: $17.99
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BestAir R14ALLM Replacement For Kenmore 83176 2-Pack
(KENMORE 83176 1 R)

The Kenmore 83176 Carbon PreFilter comes in this cost-cutting 2-pack package. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


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BestAir R14ALLM Replacement For Kenmore 83176 2-Pack
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BestAir R14ALLM Replacement For Pollenex FP1000 2-Pack
(POLLENEX FP1000 R)

The Pollenex FP1000 is the correct replacement for the following air cleaners: Pollenex Air Cleaners requiring a carbon pre-filter.


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BestAir R14ALLM Replacement For Pollenex FP1000 2-Pack
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BestAir R14ALLM Replacement For Shop-Vac 8017062 2-Pack
(SHOP-VAC 8017062 1 R)

The Shop-Vac 8017062 Carbon PreFilter 2-Pack is a replacement two pack of carbon pre-filters for the Shop-Vac 1030000 air cleaner model. These carbon filters reduce airborne contaminants down to 5 microns and allows you to reduce dust and dirt from


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BestAir R14ALLM Replacement For Shop-Vac 8017062 2-Pack
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BestAir R14ALLM Replacement For Sunbeam 6618 2-Pack
(SUNBEAM 6618 1 R)

The Sunbeam 6618 Carbon prefilter 2-pack works with your Sunbeam 2590 air purifier. This convenient two pack will keep noxious gases and large particulates out of your homes air. This will increase the life of your air purifiers HEPA filter.


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BestAir R14ALLM Replacement For Sunbeam 6618 2-Pack
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Hunter 30938 QuietFlo HEPA Purifier Filter 3-Pack
(30938)

The Hunter 30938 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30938 QuietFlo HEPA Purifier Filter
Our Price: $188.58

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Hunter 30960 QuietFlo HEPA Purifier Filter 3-Pack
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


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Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $210.75

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Hunter 30965 QuietFlo HEPA Purifier Filter 3-Pack
(30965)

The Hunter 30965 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns. This is a true HEPA filter and a genuine OEM Hunter part.


Special Order. Ships in 7 days.
Hunter 30965 QuietFlo HEPA Purifier Filter
Our Price: $110.97

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Free Flow 93524 Room Air Conditioner Filter, 1777 - 15" x 24"
(93524)

This Free Flow Room Air Conditioner Filter (1777) is a universal 15" x 24" cut to fit black foam room air conditioner filter. It filters dirt, dust, soot, pollen, and other allergens.


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Free Flow 93524 Room Air Conditioner Filter, 1777 - 15" x 24"
Our Price: $10.99
Retail: $15.99
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Aprilaire 1200 Commercial Humidifier Filter Pad Water Panel
(Aprilaire 1200)

This is an Aprilaire 1200 Humidifier Filter Pad Water Panel for various Aprilaire commercial humidifiers including the Aprilaire 1120 Humidifier, Aprilaire 1130 humidifier, and the Aprilaire 1140 humidifer. The Aprilaire water panel evaporator is th


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Aprilaire 1200 Commercial Humidifier Filter Pad Water Panel
Our Price: $62.95
Retail: $90.60
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Carrier 356066-1201 Charcoal Filter EACBAXCC0020 2-Pack
(356066-1201)

The Carrier 356066-1201 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


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Carrier 356066-1201 Charcoal Filter EACBAXCC0020
Our Price: $96.96

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Aprilaire 261 Spacegard 2600 Filter Media Replacement 10-Pack
(Aprilaire 261)

This genuine Spacegard Aprilaire 2600 Filter Media Replacement, also known as the Aprilaire 261 Filter, is the replacement filter used in the Spacegard Aprilaire 2600 Air Cleaner. The Aprilaire 261 Air Filter / Aprilaire 2600 Replacement Filter is a


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Aprilaire 261 Spacegard 2600 Filter Media Replacement
Our Price: $639.90

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3M Filtrete OAC150RF Replacement for 3M Filtrete OAC150 - 6-Pack 6-Pack
(OAC150RF)

The 3M Filtrete OAC150 Replacement Air Cleaner Filter is used in the 3M Filtrete OAC150 Office Air Cleaner. This replacement filter is also known as part number OAC150RF.

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3M Filtrete OAC150RF Replacement for 3M Filtrete OAC150 - 6-Pack
Our Price: $162.00

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3M Filtrete OAC250RF Replacement for 3M Filtrete OAC250 6-Pack
(OAC250RF)

The 3M Filtrete OAC250 Replacement Air Cleaner Filter is used in the 3M Filtrete OAC250 Office Air Cleaner Purifier. This filter replacement is also known as part number OAC250RF.


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3M Filtrete OAC250RF Replacement for 3M Filtrete OAC250
Our Price: $305.94

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Trion 123324-008 Trim T / Trim TX Air Cleaner Prefilter
(123324-008)

The Trion Trim T / Trim TX Air Cleaner Prefilter is an aluminum prefilter for electronic air cleaners. Trion Trim T electronic air cleaners are whole house air cleaners built for air duct system. Electricity is utilized to attract and capture dust,


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Trion 123324-008 Trim T / Trim TX Air Cleaner Prefilter
Our Price: $22.99
Retail: $29.99
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Carrier 49BB680044 Humidifier Filter Replacement
(49BB680044)

The Carrier 49BB680044 is the correct replacement for the following humidifiers: Carrier 49BB001/910A Whole House Humidifiers Carrier 49BH/912A-912B Whole House Humidifiers Bryant Whole House Humidifiers


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Carrier 49BB680044 Humidifier Filter Replacement
Our Price: $56.99
Retail: $69.99
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Carrier 318501-761 Humidifier Water Filter Pad
(Carrier 318501-761)

The Carrier 318501-761 Humidifier Water Filter Pad helps your humidifier generate the humidity needed during the heating season.


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Carrier 318501-761 Humidifier Water Filter Pad
Our Price: $19.60
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Carrier P1101045 Humidifier Water Panel Filter 10-Pack
(Carrier P1101045 R)

The Carrier P1101045 Humidifier Water Panel Filter offers Honeycomb filtration to trap mineral impurities and pollutants found in water. The Carrier Water Panel Filter should be replaced, once every 6 months or more often in hard water areas.


Special Order. Ships in 8 days.
Carrier P1101045 Humidifier Water Panel Filter
Our Price: $84.00

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GeneralAire 100328 Ventilator Filter Replacement
(4663)

The GeneralAire filter pads are for use on your GeneralAire Venitlator. This ventilator filter media will keep your unit running at its best. The 100328 filter media is a genuine OEM part from the manufacturer. These ventilator filter pads will comp


Special Order. Ships in 9 days.
GeneralAire 100328 Ventilator Filter Replacement
Our Price: $41.99
Retail: $49.99
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