You are here: Fantech USA | Fantech is a part of Systemair Group To find more information about Systemair, please click on the link below. » USA - English » Canada - English » Canada - Français » Mexico - Español » Canada & USA - EnglishWhere are your air filters located in your home? Most central heating and air conditioning systems locate the air filter housing as close to the blower unit as possible in the return air duct. Air filtration happens as the blower draws air through the filter and feeds it into the furnace or AC unit for conditioning and circulation. The grill or box cover over the opening that contains the air filter should be located on the wall nearest to wherever the furnace is mounted, on the opposite side of the wall as the furnace. If not there, the filter may be located inside, or on the air handler itself. How do I find out my furnace filter size? The opening behind the grate covering the furnace filter will typically be a basic square or rectangle shape.

Your air vent filter size should match exactly to slightly smaller than the measured outside length and width of the frame around that opening. This is vital as missed matched filters can allow harmful particles such as pollen, dust mites, mold spores, pet dander, tobacco smoke and other contaminants to enter your house. Having an incorrect filter size is like not using a filter at all, which can have a bigger impact on your furnace and AC systems. Actual filter size is the critical dimension to measure and shop for. Most air vent filters match exactly with the size of the opening. Vent filters that do not match exactly, are expressed in terms of nominal and actual filter sizes. Nominal filter size is the approximate size of the filter rounded up to the nearest whole inch. For example, a filter that measures 19 ⅝” x 19 ⅝” x 13/16” might be nominally labelled as 20 x 20 x 1. Need help figuring out your air filter size? Pull out your current filter and look on its side.

Dimensions range from 10”x10” to 30”X36” and most, but not all filters are 1” thick, though some homes will have 2”-5” thick filters. What sizes does Quality Air Filters have? Some HVAC systems require eccentric shaped, and/or oddly sized air filters. Quality Air Filters stocks 75 standard sized air filters, and can make custom air filters to any size desired. fellowes air purifier noiseThe best part is that there is no minimum quantity requirement for custom orders. crc air sensor clean fiyatıYou can order just one custom air filter if that’s all you need. new age living cp3 commercial air purifierAdditionally, Quality Air Filters can create custom delivery schedules that vary from just a one time order to every 2-6 months that best suit your air filter needs.