Filter Hvac Filters
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 HVAC FURNACE AIR FILTER CASE OF 12 SHIPS FREE $39.99 Time Remaining: 26d 18h 51m Buy It Now for only: $39.99 |
 2 Accumulair MERV 11 Air Filters 295x32x2 NR for Geothermal HVAC 4 available $69.99 Time Remaining: 2d 13h 20m |
 FACTORY SEALED CASE OF 12 20x25x1 AIR FURNACE FILTER HVAC FILTERS NEW $12.99 Time Remaining: 11d 5h 23m Buy It Now for only: $12.99 |
 CASE OF 12 16x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $12.99 Time Remaining: 16d 18h 44m Buy It Now for only: $12.99 |
 CASE OF 12 16x25 AIR FURNACE FILTER HVAC FILTERS NIB $12.99 Time Remaining: 17d 18h 55m Buy It Now for only: $12.99 |
 HVAC FURNACE AIR FILTER Cut to fit FREE SHIPPING $23.99 Time Remaining: 27d 7h 47m Buy It Now for only: $23.99 |
 CASE OF 12 12x24x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.95 Time Remaining: 15d 18h 2m Buy It Now for only: $15.95 |
 CASE OF 12 20x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $12.99 Time Remaining: 20d 18h 58m Buy It Now for only: $12.99 |
 CASE OF 12 14x30x1 AIR FURNACE FILTER HVAC FILTERS NIB $18.49 Time Remaining: 15d 18h Buy It Now for only: $18.49 |
 return air filter rack 16 x 20 x 1 filter duct work hvac heating cold air $42.00 Time Remaining: 24d 16h 53m Buy It Now for only: $42.00 |
 CASE OF 12 18x24x1 AIR FURNACE FILTER HVAC FILTERS NIB $16.95 Time Remaining: 16d 18h 41m Buy It Now for only: $16.95 |
 CASE OF 12 14x24x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.99 Time Remaining: 16d 18h 28m Buy It Now for only: $15.99 |
 CASE OF 12 14x14x1 AIR FURNACE FILTER HVAC FILTERS NIB $17.49 Time Remaining: 15d 18h 4m Buy It Now for only: $17.49 |
 CASE OF 12 18x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.95 Time Remaining: 15d 18h 1m Buy It Now for only: $15.95 |
 CASE OF 12 16x24x1 AIR FURNACE FILTER HVAC FILTERS NEW $17.49 Time Remaining: 16d 3h 6m Buy It Now for only: $17.49 |
 DuPont Superior Allergen MultiSize Furnace Filters HVAC $59.99 Time Remaining: 13d 10h 39m Buy It Now for only: $59.99 |
 Sheet metal return air shoe with filter rack heating cooling hvac duct $100.00 Time Remaining: 1d 17h 21m Buy It Now for only: $100.00 |
 HVAC Filter Dryer Kit for Vacuum Pump or Reclaimer $19.99 Time Remaining: 6d 11h 59m Buy It Now for only: $19.99 |
 CASE OF 12 12x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.99 Time Remaining: 18d 18h 3m Buy It Now for only: $15.99 |
 CASE OF 12 14x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.99 Time Remaining: 16d 18h 26m Buy It Now for only: $15.99 |
 Generic Washable U cut to fit Foam Air Conditioning HVAC Filters 24x15 $12.95 Time Remaining: 17d 14h 20m Buy It Now for only: $12.95 |
 CASE OF 12 14x25x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.99 Time Remaining: 20d 18h 52m Buy It Now for only: $15.99 |
 New 4 Inch Inline Fan Duct Carbon Filter Odor Control Exhaust Blower Scrubber $99.99 Time Remaining: 26d 15h 9m Buy It Now for only: $99.99 |
 CASE OF 12 24x24 AIR FURNACE FILTER HVAC FILTERS NIB $21.45 Time Remaining: 20d 3h 31m Buy It Now for only: $21.45 |
 Filter rack 16x25x1 furnace return air conditioning hvac duct work heating $48.00 Time Remaining: 12d 11h 12m Buy It Now for only: $48.00 |
 CASE OF 12 20x30x1 AIR FURNACE FILTER HVAC FILTERS NIB $21.75 Time Remaining: 20d 3h 33m Buy It Now for only: $21.75 |
 GeneralAire AC500 Whole House Hepa Filter $195.00 Time Remaining: 2d 16h 11m |
 Quart Spray Bottle Anti Allergen HVAC Filter Enhancer Great for allergy Sufferer $9.97 Time Remaining: 13d 19h 36m Buy It Now for only: $9.97 |
 20x24x2 12 pack MERV 11 Pleated HVAC Air Filters $89.19 Time Remaining: 16d 5h 41m Buy It Now for only: $89.19 |
 CASE OF 12 20x24 AIR FURNACE FILTER HVAC FILTERS NIB $19.95 Time Remaining: 16d 3h 2m Buy It Now for only: $19.95 |
 CASE OF 12 18x18x1 AIR FURNACE FILTER HVAC FILTERS NIB $17.99 Time Remaining: 16d 17h 49m Buy It Now for only: $17.99 |
 HVAC Filter Cabinet Carrier Bryant Merv 8 16x20x5 NEW FNCCABCC0017 $119.95 Time Remaining: 11d 10h 54m Buy It Now for only: $119.95 |
 CASE OF 12 20x20x2 AIR FURNACE FILTER HVAC FILTERS NIB $25.95 Time Remaining: 28d 2h 54m Buy It Now for only: $25.95 |
 CASE OF 12 10x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $16.49 Time Remaining: 18d 19h 29m Buy It Now for only: $16.49 |
 CASE OF 12 16x16x1 AIR FURNACE FILTER HVAC FILTERS NIB $16.45 Time Remaining: 23d 19h 1m Buy It Now for only: $16.45 |
 AIR HANDLER 2W186 FILTER ROLL 36 x 20 x1 New in Box HVAC $10.00 Time Remaining: 6d 9h 52m Buy It Now for only: $10.00 |
 Air Filters Merv14 furnace filter hvac 12x24x4 heating cool new cooling x6 $60.00 Time Remaining: 29d 16h 36m Buy It Now for only: $60.00 |
 CASE OF 12 12x30x1 AIR FURNACE FILTER HVAC FILTERS NIB $17.95 Time Remaining: 18d 18h 9m Buy It Now for only: $17.95 |
 12 NEW IN BOX GLASFLOSS 24x24x2 ZL PLEAT STANDARD CAPACITY FILTERS PN ZLP24242 $63.00 Time Remaining: 19d 3h 30m Buy It Now for only: $63.00 |
 CARRIER FILTER RACK 20 MEDIA CABINET Part 325887 702 HVAC Furnace 20x25x5 $39.85 Time Remaining: 26d 18h 31m Buy It Now for only: $39.85 |
 Flanders Precision MODEL 40 PrePleat AIR FILTER 16X20X2 $5.99 Time Remaining: 29d 17h 22m Buy It Now for only: $5.99 |
 CASE OF 12 25x25 AIR FURNACE FILTER HVAC FILTERS NIB $19.95 Time Remaining: 17d 19h 32m Buy It Now for only: $19.95 |
 HVAC filters pack of 3 size 28 1 2 x 29 1 2 x 4 $40.00 Time Remaining: 5d 10h 30m Buy It Now for only: $40.00 |
 Friedrich PXFTA Replacement Filters 10 pack $89.00 Time Remaining: 13d 8h 55m Buy It Now for only: $89.00 |
 CASE OF 12 18x25x1 AIR FURNACE FILTER HVAC FILTERS NIB $18.49 Time Remaining: 20d 3h 28m Buy It Now for only: $18.49 |
 3 8 Liquid line Filter Drier 163 or 163S for HVAC and Refrigeration $18.99 Time Remaining: 7d 17h 26m Buy It Now for only: $18.99 |
 MERV 11 Pleated HVAC Filters 16x16x2 12 pack Great quality FREE Shipping $83.55 Time Remaining: 19d 10h 45m Buy It Now for only: $83.55 |
 GE Zoneline PTAC RAA62 Filters For 2200 3200 5200 Series $49.00 Time Remaining: 24d 16h 43m Buy It Now for only: $49.00 |
 GE RAA72 Through Wall Round Controls Replacement Air Filters $39.00 Time Remaining: 5d 17h 49m Buy It Now for only: $39.00 |
 CASE OF 12 10x25x1 AIR FURNACE FILTER HVAC FILTERS NIB $16.49 Time Remaining: 20d 19h Buy It Now for only: $16.49 |
 Humidifier Aprilaire Water Panel Water Filter No 35 13 x 10 x 1 3 4 $14.14 Time Remaining: 20d 2h 38m Buy It Now for only: $14.14 |
 AIRQC ELECTROSTATIC AIR FILTER LIFETIME WARRANTY FURNACE PERMANENT HVAC $45.00 Time Remaining: 5d 17h 55m |
 CASE OF 12 15x20x1 AIR FURNACE FILTER HVAC FILTERS NIB $15.99 Time Remaining: 14d 18h 39m Buy It Now for only: $15.99 |
 Humidifier Aprilaire Water Panel Water Filter No 10 $9.40 Time Remaining: 5d 15h 53m Buy It Now for only: $9.40 |
 GE RAA63 Zoneline PTAC Replacement Air Filters 28 29 38 39 58 Series $49.00 Time Remaining: 24d 16h 50m Buy It Now for only: $49.00 |
 CASE 12 16x20 PLEATED AIR FURNACE FILTER HVAC FILTERS $41.95 Time Remaining: 20d 3h 27m Buy It Now for only: $41.95 |
 Air Handler 2W239 24x24x4 MERV 7 Standard Capacity Pleated Air Filters Box of 6 $49.99 Time Remaining: 6d 13h 17m Buy It Now for only: $49.99 |
 CASE OF 12 12x25 AIR FURNACE FILTER HVAC FILTERS NIB $15.95 Time Remaining: 15d 17h 58m Buy It Now for only: $15.95 |
 CASE 12 20x20 PLEATED AIR FURNACE FILTER HVAC FILTERS $41.95 Time Remaining: 19d 18h 28m Buy It Now for only: $41.95 |
 12x15x1 Healthy Home A C HVAC Filters 3 pack Anti Microbial Layer FREE Ship $27.86 Time Remaining: 2d 11h 53m Buy It Now for only: $27.86 |
 LOT of 24 FURNACE AC HVAC AIR FILTERS 10X30X1 $45.00 Time Remaining: 3d 23h 58m Buy It Now for only: $45.00 |
 GE RAA62A Zoneline PTAC Replacement Air Filters for 2500 3500 5500 Series $49.00 Time Remaining: 24d 16h 48m Buy It Now for only: $49.00 |
 Kuhl KWCFL Carbon Filter LARGE used with SL EL and YL $39.00 Time Remaining: 21d 18h 46m Buy It Now for only: $39.00 |
 Kuhl KWCFS Carbon Filter SMALL used with SS ES and YS $39.00 Time Remaining: 21d 18h 43m Buy It Now for only: $39.00 |
 Kuhl KWCFQ Carbon Filter used with SQ and EQ Models $39.00 Time Remaining: 21d 18h 41m Buy It Now for only: $39.00 |
 3M 2 Pack 15 x 24 Red Filtrete Air Conditioner Filter $12.16 Time Remaining: 28d 14h 20m Buy It Now for only: $12.16 |
 Humidifier Aprilaire Water Panel Water Filter No 12 $17.27 Time Remaining: 24d 14h 49m Buy It Now for only: $17.27 |
 Kuhl KWCFM Carbon Filter MEDIUM used with SM EM and YM $39.00 Time Remaining: 21d 18h 45m Buy It Now for only: $39.00 |
 MERV 11 Pleated HVAC Filters 16x24x2 12 pack $83.03 Time Remaining: 20d 5h 43m Buy It Now for only: $83.03 |
 12x16x1 Home HVAC Filters Great for Allergies 3 pack $30.65 Time Remaining: 21d 6h 35m Buy It Now for only: $30.65 |
 GE RAA72A Through Wall Oval Controls Replacement Air Filters $39.00 Time Remaining: 5d 18h 6m Buy It Now for only: $39.00 |
 Safe Home Duo HVAC Disposable Furnace Filter 14x18x1 $35.12 Time Remaining: 23d 17h 44m Buy It Now for only: $35.12 |
 Air Handler 2W236 20x20x4 MERV 7 Standard Capacity Pleated Air Filters Box of 6 $49.99 Time Remaining: 6d 13h 7m Buy It Now for only: $49.99 |
 8x16x1 Healthy Home A C HVAC Filters 3 pack $30.65 Time Remaining: 21d 6h 34m Buy It Now for only: $30.65 |
 Refrigeration Air Conditioning Filter Drier 1 2 Sweat $29.86 Time Remaining: 7d 2h 16m Buy It Now for only: $29.86 |
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Furnace Filter Replacement Guidelines
How often you change your furnace filter will depend on the type of filter you use, and how you operate your furnace. Select the type of filter you use from the list below to find out what you should be doing.
Disposable Filters - Disposable filters should be changed every 6 to 8 weeks. A lot of people try cleaning these filters but they are not really meant to be cleaned and may actually become even less efficient. Disposable filters are not very efficient and provide only a basic amount of air cleaning. If you run your furnace fan continuously, cleaning should be performed every 3 to 4 weeks.
Washable Filters - Washable filters should be cleaned every 6 to 8 weeks for normal use. If you run your furnace fan continuously, wash filters every 3 to 4 weeks. When you wash your filter be sure to inspect it for wear and tear.
Hammock - Hammock filters are not meant to be washed and should be replaced every 8 to 10 weeks. When you purchase a replacement hammock filter it may be a little larger than the metal frame it’s attached to. Install the filter on the frame and then trim off the excess.
Electrostatic Air Cleaner - Electrostatic air cleaners must be cleaned monthly. To clean them first vacuum the nylon media and then rinse the filter with water. Be sure to raise the filter in the opposite direction from the air flow. Electrostatic air cleaners are very difficult to get very clean so as your filter gets older, clean it even more often. When cleaning inspect it for damage and wear and tear.
Electronic Air Cleaner (EAC) - The most important thing to remember about electronic air cleaners is to keep them clean. EACs are very efficient until the cells get dirty and then lose a lot of their efficiency. When cleaning the cells be careful not to break any of the thin wires that run along the outside of the cells. If one of these wires break, the cell current will be broken and will not work. Do not forget to clean the small prescreens as well.
Large Pleated Media Filter - This is the easiest filter to clean. All you have to do is replace the media cartridge semi-annually. Arrange to have your cartridge replaced at the same time as you have your annual heating and cooling maintenance performed.
About the Author
Susan Sarno is a manager at A.B. May Company. A.B. May was founded in 1959, and is the premier Kansas City heating and cooling company. A.B. May Co. provides a full range of services to area homeowners and business owners including heating, air conditioning, plumbing, electrical, appliance repair, replacement windows, home warranties, water treatment, and more.