Find air filters for air conditioning systems

Air Filters for A/C Systems

Go to American Air FilterAmerican Air Filter linkAmerican Air Filter:Furnace filters and air conditioning filters for home and commercial systems. American Air Filter distributor. Over 4000 replacement filters and custom made sizes available.
Go to Furnace Filter WarehouseFurnace Filter Warehouse linkFurnace Filter Warehouse:Furnace Filter Warehouse and Heat and Cool Warehouse are your one stop shops for Furnace Filters, Geothermal Filters, Humidifier Pads, and parts for your major manufacturers of Heating and Air Conditioning.
Go to Air Filters NowAir Filters Now linkAir Filters Now:Furnace filters and air conditioning filters for all sizes. Order Accumulair, 3M, Honeywell, Aprilaire, Holmes, and more furnace filters any size Air Filters.
Go to Air Filters, Inc.Air Filters, Inc. linkAir Filters, Inc.:Quality residential air filters for your home A/C filtration system, manufactured by Air Filters, Inc. Custom Air Filters Available. Order Online Today.
Go to The Filter BoxThe Filter Box linkThe Filter - Your home air filter delivery and reminder subscription.
Go to IAQ SourceIAQ Source linkIAQ stocks all sizes of furnace filters & air conditioner filters, even the hard-to-find sizes. You'll breathe easier with furnace filters & air conditioner filters from
Go to Factory Direct FiltersFactory Direct Filters linkFactory Direct Filters:HVAC filters in standard and all hard-to-find sizes at Factory Direct Filters. Always Free Shipping, no minimum order.
Go to Filters FastFilters Fast linkFilters Fast:Air Filters and Furnace Filters by 3m Filtrete, Aprilaire, Honeywell, Trion, Air Bear, Holmes + more. Lowest Price and Best Service Guaranteed!
Go to Your Filter ConnectionYour Filter Connection linkYour Filter Connection:Shop replacement furnace filters, home air filters and humidifier filters. Name brands, aftermarket and custom air filters. Over 150 sizes and free shipping!
Go to A/C Filters 4 LessA/C Filters 4 Less linkA/C Filters 4 Less:AC Filters or Furnace Filters From AC Filters 4 Less, Buy Now and Save on EZ Flow, Flanders, Glasfloss, Purolator, Trane, Honeywell, Aprilaire, Carrier.
Go to Air Filters DeliveredAir Filters Delivered linkAir Filters Delivered:AC Filters | Aerostar Air Filters | Air Filters Delivered | AC filters for your Furnace & AC. FREE shipping, FREE returns, NO minimum orders. Made in America.
Go to PermatronPermatron linkPermatron:Air Conditioner Filters | Permatron | Get air conditioner filters from Permatron and save on energy costs by keeping your air conditioner filter clean.
Go to FilterEasyFilterEasy linkFilterEasy:Buy your Air Conditioner and Furnace filters through FilterEasy, We will automatically ship them when they need to be replaced. Don't waste time hassling with the store.
Go to Capital Air FiltersCapital Air Filters linkCapital Air Filters:Premier distributor of the highest quality air filtration products for indoor air quality problems. Call Capital Air Filters Raleigh, North Carolina, For All Your Air Filter Needs.
Go to HoneywellHoneywell linkHoneywell:Honeywell Furnace Filters and Air Filters for HVAC systems save money, improve air quality, and are easy to install. Buy Genuine Honeywell Filters and Save with our multi filter discount. Honeywell HVAC filters are some of the most effective furnace filters and replacement filters available on the market, they save money, improve air quality, and are easy to install.

HVAC Air Filters By Category

Go to Commercial HVAC FiltersCommercial HVAC Filters linkCommercial HVAC Filters
Go to Custom Air FiltersCustom Air Filters linkCustom Air Filters
Go to Electronic Air CleanersElectronic Air Cleaners linkElectronic Air Cleaners
Go to Electrostatic Air FiltersElectrostatic Air Filters linkElectrostatic Air Filters
Go to Furnace FiltersFurnace Filters linkFurnace Filters
Go to Geothermal HVAC FiltersGeothermal HVAC Filters linkGeothermal HVAC Filters
Go to Heat Pump FiltersHeat Pump Filters linkHeat Pump Filters
Go to HEPA Air FiltersHEPA Air Filters linkHEPA Air Filters
Go to ULPA Air FiltersULPA Air Filters linkULPA Air Filters

Direct From The Tech...
When changing a dirty air filter does not solve a cooling problem.

Most people have done this; life gets busy. You forgot to change the indoor air filter after last season and when you turned on the air conditioning system, it doesn't work well, or you find that the indoor coil and refrigerant pipe has iced up. You've gone online to find that if the outdoor and indoor (blower) units are running, it's most likely a low refrigerant problem or a dirty air filter. You open the indoor unit or filter access to pull out a completely clogged or a very dirty filter. You replace it with a new one or clean a washable type filter and that should do the trick, right? Well, to understand the after-effects of the situation, you first need to understand how air filters for HVAC systems work. Standard (disposable) and washable air filters only trap a certain amount of dirt and airborne contaminants. The particles that make it through are going to get caught in A: the indoor refrigerant coil, B: the unit's blower motor and wheel, C: the supply ducting (ductwork coming out from the indoor unit) or D: back into your house. Don't get me wrong, disposable air filters are a good media to maintain a standard amount of debris from entering your system, but they need replacing on a monthly basis, especially during an active season (winter/summer). Every type of air filter can become very dirty depending on the amount of usage and the amount of particulates entering the system. If you have problems with dirt/debris or other airborne contaminates, there are many types of air filtration options to choose from to fit your needs. Do the research or ask the vendors listed on this page. Back to the initial problem. If you removed a dirty air filter, you need to check the indoor refrigerant coil for restricted metal fins. You may have to remove the coil's access door to inspect the fins. If the refrigerant pipes are keeping you from completely removing the door, pull back the opposite side of the door to inspect the fins. Never pull on the side the refrigerant lines are blocking, you could easily cause the sealed refrigerant piping to bend or split. Depending on the installation or design of your system, you may not see the indoor refrigerant coil's fins for examination. You can try using the filter access. I do not recommend cutting or removing anything that could cause damage to you or the system. If you have a way to see the indoor coil's fins, use a bright light for a closer inspection. The fins are a shiny to a dull light-gray metallic metal; never brown or black! If you can see the fins and there is some surface dirt, you can use a mild detergent in a spray bottle and another bottle with warm/hot water for a rinse. NEVER touch the fins with a glove, cloth or sponge. The metal fins are very sharp and can tear and trap the material. Just spray on the detergent and rinse. This is only for a coil with a small amount of surface dirt and you can visibly see all the fins. If the coil is completely clogged with dirt and you can only see some of the fins or none at all, you will need a professional cleaning. The technician may have to remove the evaporator coil and even the motor and blower wheel from the indoor unit for a proper and thorough cleaning. Sufficient air flow is crucial to keep a system working at its peak efficiency and cooing capacity. It will also prevent your air conditioning system from future operation problems.

By Category: HVAC Air Filters

Go to Commercial HVAC FiltersCommercial HVAC Air Filters linkCommercial HVAC Air Filters
Go to Custom Sized Air FiltersCustom Sized Air Filters linkCustom Sized Air Filters
Go to Electronic Air FiltrationElectronic Air Filtration linkElectronic Air Cleaners
Go to Electrostatic Air FiltrationElectrostatic Air Filtration linkElectrostatic Air Filters
Go to Furnace Air FiltersFurnace Air Filters linkFurnace Air Filters
Go to Geothermal HVAC Air FiltersGeothermal HVAC Air Filters linkGeothermal HVAC Air Filters
Go to Heat Pump Air FiltersHeat Pump Air Filters linkHeat Pump Air Filters
Go to HEPA HVAC Air FiltersHEPA HVAC Air Filters linkHEPA HVAC Air Filters
Go to ULPA HVAC Air FiltersULPA HVAC Air Filters linkULPA HVAC Air Filters
Having problems with your air conditioning system?

Air Conditioning Air Filters:
Terms & Online References

Airborne Contaminants
Airborne Particles
Allergies / Allergens / Pollen
Dander / Pet / Human
Disposable / Standard
Dust / Dirt / Dust Mites
Fungus / Fungi
Gases / Vapors / Fumes / Mists
Indoor Air Quality (IAQ)
Metals / Lead / Cadmium / Chromium
Mold Spores / Mildew
Odors / Smoke
Particulates / Particles
Pleated Air Filters
Pollution / Enviromental
MERV Rating
Volatile Organic Compounds (VOC)
Washable Air Filters