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Where to Buy Air Filters for Air Conditioning & Heating Systems
POST a QUESTION or COMMENT about where to buy air conditioner or heating furnace air filters, how to obtain large or unusual air filter sizes, custom air filters, & air filters with different efficiency properties.
Where to buy air conditioner or heating furnace air filters: product sources, recommendations, air filter types & efficiency choices.
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Sources of HVAC Air Filters, High Efficiency Filters, Gasketed Air Filters, and Air Filter Manufacturers
Local HVAC Suppliers
such as your plumbing and heating parts supplier or building supply stores such as Home Depot or Lowes or Menards all carry a range of common air filter types and sizes.
Online vendors of HVAC supplies
can deliver air filters including both common and specialty or odd sizes.
Filtration Manufacturing Inc.
in Alabama, are a manufacturer/distributor of air filters.
They have a wide selection of air filters (air filtration products) and air purification products. This company can also manufacture and deliver quickly air filters made to custom dimensions.
Filtration Manufacturing Inc. company has paid particular attention to air filters that don't leak or bypass air at their mounting location.
Their website http://www.filtrationmanufacturing.com/ offers less discussion about filter composition materials than
those who are concerned with filter fiber shedding or filter composition.
Global Filter Source,
is a supplier of for non-fiberglass filters such as their polypropylene filter with a supporting grid of wire and cardboard.
Contact Global Filter 877-844-3293 offers "healthy home" filters and a MERV 11 pleated furnace filter. Website: http://www.healthyhomefilters.com/
List your product here:
manufacturers or suppliers of air filters and air filtration equipment are welcome
to Contact us to add product listings here - there is no listing cost (we reserve the right to add or remove
product listings from our web pages) T
Before calling or ordering an air filter online, remember to measure and write down the dimensions of the filters you are replacing in order
to order the correct air filter size.
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.
Other air filtration methods besides air filters
Beyond mechanical filtration methods using high MERV or HEPA rated air filters we've discussed above are other
methods that can reduce airborne particle levels:
Electrostatic air cleaners
have been in use on HVAC systems for decades as highly efficient "air filters".
These
devices use an electrical charge on metal blades or plates and an electrical charge of opposite polarity on wires between
the plates to cause particles in air moving past the wires to become "charged" and to stick to the surface of the metal plates or blades
in the air cleaner.
These electrostatic precipitators may also actually oxidize particles as well.
Ultraviolet light
(photo catalytic oxidation) is used in some air handling or duct systems, claiming to kill 99.95 of bacteria and viruses.
While Wikipedia claims that independent research has confirmed this claim, we are very skeptical. For UV light to
work as a sterilizer we need sufficient contact time.
We are doubtful that little particles zooming along in
the air path get enough time in the UV light to be effectively neutralized.
However the surfaces in the duct or air handler system
which are exposed to this light are almost certainly being treated effectively. We'd like to see this approach
tested in duct systems where condensate splash-by is at risk of wetting duct surfaces and at risk of a concomitant
mold growth problem in that location.
Charcoal or activated carbon air filters
provide a porous material that can remove small particles along with
some volatile organic compounds (VOC's). These are normally used together with a HEPA filtration system.
"Air purifiers" or ionizers
that charge their internal electrical surfaces and cause airborne particles to stick
to a collector plate are a currently popular (2006) product which in our opinion are of limited actual effectiveness unless
used in a small, clean, enclosed space.
These devices do not move enough cubic feet per minute (CFM) of air
to be effective in a large open space.
"Air cleaners or purifiers" which use ozone,
or "ozone generators" have been proposed as air cleaners and as "mold killers"
by the manufacturers of these products.
Ozone is a powerful oxidizer and it may also cause airborne
particles to become electrically charged and to plate out on building surfaces. They are used
effectively to reduce airborne smoke and they're used in some medical applications or facilities.
Some other "air purifiers" may also generate (un-wanted) ozone levels in a building.
But ozone generators can themselves be an IAQ problem source if they produce
high levels (over 0.05 ppm) of ozone in indoor air.
And as a "mold remediation" or mold cure ozone generators
are junk science which fails to properly remove the problem mold and fails to correct its cause.
On 2023-05-19
by InspectApedia DF (mod)
- Filter size for York AC model n2ahd14a06c
@Steve,
I'm not sure that that number is the model number as it's a different format than usual - that may be a serial number. Take a look at our York manuals page here:
where you may find the correct manual. If not, there is also contact information for York to contact them for the filter size also. Often, the filter size will be a readily available size used for many models.
First though would be to check your owner's manual for your unit if you have it.
And if you can give us the model number or if we find the information you ask, we'll add that here.
Interestingly a review of several York HVAC manuals finds that the manufacturer doesn't give air filter sizes - just type. options, perhaps because of variation in cabinet size among models.
Usually we can simply use a tape measure to get the length and width and maximum thickness of the air filter - just open the air handler door to show the filter slot or mounting brackets.
If you've not already found where the air filter mounts on your system:
Watch out: in some HVAC systems there is NO air filter in the air handler itself. Rather the filter may be at a central air return or at multiple air returns.
See
AIR FILTERS for HVAC SYSTEMS https://inspectapedia.com/aircond/Air-Filters-HVAC.php
and more details at
AIR FILTER LOCATION https://inspectapedia.com/aircond/Air_Filter_Location.php
SOURCES FOR AIR FILTERS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.
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In addition to any citations in the article above, a full list is available on request.
Thanks to Mark Cramer, Tampa Florida, for assistance in technical review of the "Critical Defects"
section and for the photograph of the deteriorating gray Owens Corning flex duct in a hot attic. Mr. Cramer is a Florida home inspector and
home inspection educator.
Thanks to Jon Bolton, an ASHI, FABI, and otherwise certified Florida home inspector who provided photos of failing Goodman gray flex duct in a hot attic.
Wikipedia Web: https://www.wikipedia.org/ provided background information about the definition of HEPA and airborne particle interception.
Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
In addition to citations & references found in this article, see the research citations given at the end of the related articles found at our suggested
Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: info@carsondunlop.com. Alan Carson is a past president of ASHI, the American Society of Home Inspectors.
Carson Dunlop Associates provides extensive home inspection education and report writing material. In gratitude we provide links to tsome Carson Dunlop Associates products and services.