bbb A+ site secured
RETURNING CUSTOMER?
SIGN IN. CONFIRM ORDER. DONE.
Free Shipping on orders over $75

Find Replacement Air Filters Fast & Easy!

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.

Find Your Filter Size

Pick a size. Pick a quality. Checkout.


Find by Filter Brand

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.


Sort :

Air Filters product list


Hunter 30915 HEPAtech Replacement Purifier Filter
(30915)

The Hunter 30915 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


In stock! Ships in 1 business day.
Hunter 30915 HEPAtech Replacement Purifier Filter
Our Price: $15.99
Retail: $19.95
You Save 20%!

view




Hunter 30917 HEPAtech Purifier Filter
(30917)

The Hunter 30917 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


In stock! Ships in 1 business day.
Hunter 30917 HEPAtech Purifier Filter
Our Price: $22.99
Retail: $24.95
You Save 8%!

view




Spacegard Aprilaire 2600 Filter Media Replacement
(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


Special Order. Ships in 21 days.
Spacegard Aprilaire 2600 Filter Media Replacement
Our Price: $62.99
Retail: $69.99
You Save 10%!

view




Honeywell Trane Perfect Fit Filter 24x27x5 BAYFTFR24M 3-Pack
(HTRN2427T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

Free shipping within the continental United States!

In Stock! Ships in 5 to 6 business days.
Honeywell Trane Perfect Fit Filter 24x27x5 BAYFTFR24M
Our Price: $147.00

view




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 15 days.
Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
Our Price: $61.90

view




Honeywell FC40R1110 Return Grille Air Filter 14X20x3
(FC40R1110)

The Honeywell FC40R1110 is a return air grille filter that fits the following: Any return air grille that uses a 14 inch x 20 inch x 4 inch filter The Honeywell FC40R1110 Furnace Air Filter - 14X20 has a Minimum Efficiency Reporting Value (MER


Special Order. Ships in 12 days.
Honeywell FC40R1110 Return Grille Air Filter 14X20x3
Our Price: $61.95
Retail: $139.98
You Save 56%!

view




Lennox X8312 MERV 16 Expandable Filter Replacement
(X8312)

The Lennox X8312 MERV 16 furnace filter is an expandable filter for your furnace system. Also known as the HCXF16-16, this pleated air filter will protect both your family and HVAC system. This MERV 16 rated filter will capture very small particles.

Free shipping within the continental United States!

Special Order. Ships in 8 days.
Lennox X8312 MERV 16 Expandable Filter Replacement
Our Price: $109.16
Retail: $124.81
You Save 13%!

view




Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
(FFC21275TRN OKGM)

The Filters Fast 5" Trane Perfect Fit BAYFTFR21M Compatible FFC21275TRN OKGM fits the following: any air cleaner that calls for a 21" x 27" x 5" filter This Filters Fast air filter also replaces the Trane Perfect Fit BAYFTFR21M filter. This Tr


In Stock! Ships in 1 to 2 business days.
Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
Our Price: $99.00
Retail: $104.99
You Save 6%!

view




General Aire 20x25 MERV11 Filter Media GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


Out of stock
General Aire 20x25 MERV11 Filter Media GA100A37
Our Price: $30.99
Retail: $39.99
You Save 23%!

view



Lennox X8349 MERV 10 Filter Maintenance Kit
(X8349)

The Lennox X8349 MERV 10 Filter Maintenance Kit is a filter maintenance kit for the Lennox PCO-12C PureAir Air Purification System. This maintenance kit includes one MERV 10 filter (X6664), one catalyst insert (75X73), and four UV bulbs (X8149). The

Free shipping within the continental United States!

Special Order. Ships in 9 days.
Lennox X8349 MERV 10 Filter Maintenance Kit
Our Price: $195.00
Retail: $225.25
You Save 13%!

view




White Rodgers 20x26x5 F825-0549 MERV 13 2-Pack
(FFC20265WRM13)

The White Rodgers 20x26x5 Air Filter F825-0549 is a compatible alternative that's a part of the White Rodgers F825 Series residential air cleaner replacement filters.


In Stock! Ships in 2 to 3 business days.
White Rodgers 20x26x5 F825-0549 MERV 13 2-Pack
Our Price: $80.00
Retail: $100.00
You Save 20%!

view




Bionaire 611DCS Compatible Dual Air Filter
(611DCS)

The Bionaire 611DCS dual air filter cartridge is for use with your Bionaire model air purifier. This dual air purifier filter inclueds both a main and carbon filter for better air filtration. The carbon and air filter work together to remove harmful


In stock! Ships in 1 business day.
Bionaire 611DCS Compatible Dual Air Filter
Our Price: $10.99
Retail: $14.99
You Save 27%!

view




Trane Perfect Fit Filter 21.5x21x5 BAYFTAH21M 3-Pk
(HTRN2121T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

Free shipping within the continental United States!

In Stock! Ships in 5 to 6 business days.
Trane Perfect Fit Filter 21.5x21x5 BAYFTAH21M 3-Pk
Our Price: $148.00
Retail: $150.00
You Save 1%!

view




Lennox Y2920 Whole House Air Filter Cabinet
(Y2920)

The Lennox Y2920 Whole House Air Filter Cabinet is the correct system that is: Compatible with any HVAC system and does not require an additional power source


Special Order. Ships in 8 days.
Lennox Y2920 Whole House Air Filter Cabinet
Our Price: $92.75
Retail: $119.00
You Save 22%!

view




GeneralAire 201-12880 MERV 11 Filter Media
(4050)

The GeneralAire 201-12880 is a compatible replacement for the following air cleaners: Aprilaire 2200 Air Cleaner Aprilaire 2250 Air Cleaner


Special Order. Ships in 11 days.
GeneralAire 201-12880 MERV 11 Filter Media
Our Price: $48.99
Retail: $59.99
You Save 18%!

view




Lennox X8345 MERV 16 Filter Upgrade Kit
(X8345)

The Lennox upgrade kit, part number x8345 is meant for your Lennox PureAir PCO-20C air filtration unit. This MERV 16 filter measures 21" x 26" x 4" inches. Also known as the Lennox healthy climate, this filter upgrade kit will provide you with even

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Lennox X8345 MERV 16 Filter Upgrade Kit
Our Price: $311.15
Retail: $343.15
You Save 9%!

view




Totaline DTLP102-1620 16x20 MERV 11 Filter
(DTLP102-1620)

The Totaline DTLP102-1620 16x20 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


In Stock! Ships in 1 to 2 business days.
Totaline DTLP102-1620 16x20 MERV 11 Filter
Our Price: $36.45
Retail: $45.99
You Save 21%!

view




Honeywell HRF-B2 Carbon PreFilter 2-Pack
(HRF-B2 1 R)

The Honeywell HRF-B2 Carbon PreFilter 2-Pack is the correct replacement for the following models of Honeywell air purifiers: HHT-090 HHT-011 HHT-145 HPA-150 HPA-050 This carbon prefilter removes mold spores, pet dander, tobacco smoke, and


In stock! Ships in 1 business day.
Honeywell HRF-B2 Carbon PreFilter 2-Pack
Our Price: $18.99
Retail: $19.99
You Save 5%!

view




Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1
(BAYFTFR21P4A)

The Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1 fits several air cleaner models made by Trane. This Trane furnace filter measures approximately 21" x 27" x 1" and has pleats for the purification of your indoor air. This Trane Perfect Fit filter


In stock! Ships in 1 business day.
Trane Perfect Fit BAYFTFR21P4A Filter - 21x27x1
Our Price: $20.90

view




Honeywell HC-24 Humidifier Filter Replacement
(Honeywell HC-24 R)

The Honeywell HC-24 Humidifier Filter Replacement is a J replacement humidifier filter for the Holmes Tabletop Cool Mist Humidifier models. This evaporator pad is antimicrobially treated for the removal of pollutants from water and prevents the grow


In stock! Ships in 1 business day.
Honeywell HC-24 Humidifier Filter Replacement
As Low As: $14.99
Retail: $25.95
You Save 42%!

view




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: $13.98

view




Honeywell 32001 Carbon PreFilter 2-Pack
(Honeywell 32001 1 R)

The Honeywell 32001 Carbon PreFilter 2-Pack is a high quality carbon pre-filter that removes household odors and other impurities. This Honeywell 32001 Carbon PreFilter 2-Pack should be replaced every three months for optimum performance.


In stock! Ships in 1 business day.
Honeywell 32001 Carbon PreFilter 2-Pack
Our Price: $18.99
Retail: $19.99
You Save 5%!

view




Skuttle Air Cleaner Filter 16x20x5 000-0448-004 3-Pack
(000-0448-004)

The Skuttle 000-0448-004 Air Cleaner Filter can be used on air cleaners requiring 16"x20"x5" filters. The Skuttle 448-4 dramatically removes airborne particulates such as pollen, mold spores, dust, dust mites and allergens from your indoor air.


Special Order. Ships in 16 days.
Skuttle Air Cleaner Filter 16x20x5 000-0448-004
Our Price: $93.00

view




FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack 6-Pack
(FFM8PLEAT1)

The Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack is a set of replacement air filters for ideal use as service pleats or prefilters in commercial HVAC systems or industrial air cleaners. These pleated media filters arrive in a 6 pack and are ef


In Stock! Ships in 1 to 2 business days.
FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack
Our Price: $36.96

view




GeneralAire G99 Ventilator Filter Gage
(4002)

The GeneralAire G99 is the correct replacement for the following Ventilators: GeneralAire Whole House Ventilato


Special Order. Ships in 7 days.
GeneralAire G99 Ventilator Filter Gage
Our Price: $13.62
Retail: $49.99
You Save 73%!

view





Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 [ Back | Next ]

Filters Fast - Air Filters

" Thanks for being a great place to find filters. " - Charles, Front Royal, VA
Terms of Use | Privacy Policy ©2005-2018 Filters Fast LLC - All Rights Reserved
Don't Miss Out on Exclusive email Icon
Promotions and Discounts!
By signing up for our
Free Newsletter, you'll receive
exclusive promotions, discounts
and more directly to your inbox
We respect your privacy .
*Cannot be combined with any other promotion