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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:


Carrier 318501-761 Humidifier Water Filter Pad
(Carrier 318501-761)

The Carrier 318501-761 is the correct replacement for the following humidifiers: Carrier 49WS020/914A Humidifiers Carrier 914AW066A Humidifiers Carrier P110-WTR2019A Humidifiers


Special Order. Ships in 12 days.
Carrier 318501-761 Humidifier Water Filter Pad
Our Price: $19.60
Retail: $19.99
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Holmes HAPF92 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF92M)

The Holmes HAPF92 Air Purifier Carbon PreFilter-2 Pack fits the Holmes HAP292 model air purifier. This carbon prefilter features Microban technology with anti microbial and anti bacterial filter protection. The Holmes HAPF92 Air Purifier Carbon P


In Stock! Ships in 1 to 2 business days.
Holmes HAPF92 Air Purifier Carbon PreFilter
Our Price: $15.98

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BestAir R14ALLM Replacement For Honeywell 35200 2-Pack
(Honeywell 35200 1 R)

The Honeywell 35200 is the correct replacement for the following air purifiers: Honeywell HEPA Air Purifier Cleaners


In stock! Ships in 1 business day.
BestAir R14ALLM Replacement For Honeywell 35200 2-Pack
Our Price: $17.99
Retail: $19.99
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BestAir 24000 R Replacement for Honeywell 24000
(24000)

The BestAir 24000 R HEPA Air Filter is the compatible replacement for the Honeywell 24000 HEPA Air Filter.


In stock! Ships in 1 business day.
BestAir 24000 R Replacement for Honeywell 24000
Our Price: $56.99
Retail: $69.99
You Save 19%!

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3M Filtrete Dust Reduction Filter - Filtrete 300 6-Pack
(Filtrete 300)

The Filtrete 300 Dust Reduction Filter is a replacement non-electrostatic pleated filter that attracts and captures household dust


In stock! Ships in 1 business day.
3M Filtrete Dust Reduction Filter - Filtrete 300
Our Price: $42.90

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Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk 2-Pack
(AB-51625-8)

The Trion AB-51625-8 replaces the following Trion Air Bear air filters: Air Bear 1400 - 255649-103 Air Bear 1400 - 229990-103 Air Bear 2000 - 255649-102


Special Order. Ships in 10 days.
Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
Our Price: $63.90

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FiltersFast Replacement Filter For Trion Air Bear 20x25x5
(AB20258)

The AB20258 is the correct air filter replacement used in Trion Air Bear, Air Bear Classic, Air Bear Plus 2000 and Trion Air Bear Supreme 2000 Air Cleaners.


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FiltersFast Replacement Filter For Trion Air Bear 20x25x5
Our Price: $40.98
Retail: $50.00
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3M Filtrete OAC150 Replacement Filter - 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.

Free shipping within the continental United States!

Special Order. Ships in 3 days.
3M Filtrete OAC150 Replacement Filter - 6-Pack
Our Price: $162.00

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Honeywell F300E1035 20x25 Electronic Air Cleaner
(F300E1035)

The Honeywell F300E1035 20x25 Electronic Air Cleaner operates with all gas, oil and electric forced warm air furnaces and air conditioning systems.

Free shipping within the continental United States!

Special Order. Ships in 7 days.
Honeywell F300E1035 20x25 Electronic Air Cleaner
Our Price: $641.99
Retail: $699.99
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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


In stock! Ships in 1 business day.
BestAir R14ALLM Replacement For Bionaire 115-CS 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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Free Flow Room Air Conditioner Filter - 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.


Special Order. Ships in 6 days.
Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $10.99
Retail: $15.99
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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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3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1
(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 1 business day.
3M Filtrete Home Odor Furnace Filter - 18 x 24 x 1
Our Price: $29.99
Retail: $39.99
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12488101 Refrigerator Air Filter
(12488101)

The 12488101 Refrigerator Air Filter fits some newer Amana models.


Special Order. Ships in 9 days.
12488101 Refrigerator Air Filter
Our Price: $12.99
Retail: $14.99
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Trion Air Bear Right Angle Air Cleaner Merv 11
(447380-510)

The 447380-510 is the correct air cleaner that uses: 5" thick electrostatically charged pleated filter media.

Free shipping within the continental United States!

In Stock! Ships in 3 to 4 business days.
Trion Air Bear Right Angle Air Cleaner Merv 11
Our Price: $131.99
Retail: $149.99
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Holmes HAPF41 Air Purifier Carbon Prefilter 2-Pack
(ROHAPF41M)

The Holmes HAPF41 Air Purifier Carbon PreFilter-2 Pack is a replacement pack of carbon pre-filters for the Holmes HAP-300 and Holmes HAP-3004 air purifiers. This two pack of carbon filters protects the HEPA filter of your Holmes air cleaner and prev


Special Order. Ships in 3 days.
Holmes HAPF41 Air Purifier Carbon Prefilter
Our Price: $17.96

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Trion 227833-003 Charcoal Filter 5-Pack
(227833-003)

The Trion 227833-003 Charcoal Filter is an air filter replacement that fits select Trion 16x25 air cleaner models (see above). This Trion filter measures approximately 12" x 16" x 3/8" and features activated charcoal that absorbs odors and


Special Order. Ships in 3 days.
Trion 227833-003 Charcoal Filter
Our Price: $169.95

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American Metal OEMRCP0205 Replacement For LG 5230W2A003C
(5230W2A003C)

The LG 5230W2A003C Comp. Microwave Charcoal Filter, made by the American Metal Filter Company, is a compatible replacement for the LG 5230W2A003C, LG 5230W2A003A, and GE WB02X10943 activated charcoal filters. This microwave grease filter reduces kit


In Stock! Ships in 6 to 7 business days.
American Metal OEMRCP0205 Replacement For LG 5230W2A003C
Our Price: $4.99

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Lennox X2678 HEPA 20 Charcoal Carbon Filter
(X2678)

The Lennox X2678 HEPA 20 Charcoal Carbon Filter is a replacement charcoal carbon filter for the Lennox Healthy Climate HEPA 20 Bypass Filtration Unit. This is an inner filter used in the third stage of filtration for the removal of odors


In Stock! Ships in 10 to 11 business days.
Lennox X2678 HEPA 20 Charcoal Carbon Filter
Our Price: $38.00
Retail: $40.28
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Lennox 91X23 MERV 8 Pleated Air Filters 4-Pack
(91X23)

The Lennox 91X23 is a furnace and air conditioning filter that reduces the following allergens: Dust Pollen Mold spores


In Stock! Ships in 1 to 2 business days.
Lennox 91X23 MERV 8 Pleated Air Filters 4-Pack
Our Price: $31.95
Retail: $38.95
You Save 18%!

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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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FiltersFast HAPF30 R Replacement for Holmes HAPF30D
(HAPF30D)

The Holmes HAPF30D compatible single Replacement HEPA Filter removes up to 99% of airborne dust and pollen, in addition to reducing pet dander, smoke and mold spores.


Out of stock
FiltersFast HAPF30 R Replacement for Holmes HAPF30D
Our Price: $16.24
Retail: $29.99
You Save 46%!

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FiltersFast A10PR R Replacement for BDP P110-0007
(BDP P110-0007 R)

The FiltersFast A10PR R is the correct replacement for the BDP P110-0007 R and for the following humidifier models:


In stock! Ships in 1 business day.
FiltersFast A10PR R Replacement for BDP P110-0007
As Low As: $6.99
Retail: $10.99
You Save 36%!

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FiltersFast A10PR R Replacement for BDP HUMBBSBP2312-A
(BDP HUMBBSBP2312-A R)

The FiltersFast A10PR R is the correct replacement filter for the BDP HUMBBSBP2312-A R and for the following humidifier models:


In stock! Ships in 1 business day.
FiltersFast A10PR R Replacement for BDP HUMBBSBP2312-A
As Low As: $6.99
Retail: $10.99
You Save 36%!

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FiltersFast A10PR R Replacement for Bryant P110-0007
(Bryant P110-0007 R)

The Bryant P110-0007 Humidifier Water Panel Filter is the nucleus of your humidifier, keeping you comfortable and balanced in your home. The Bryant filter is made of durable material, ensuring longevity.


In stock! Ships in 1 business day.
FiltersFast A10PR R Replacement for Bryant P110-0007
As Low As: $6.99
Retail: $10.99
You Save 36%!

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