When it comes to air filters, thickness is an important factor to consider. Most air filters are 1 to 2 inches thick, although some can be 3 to 6 inches thick. The four-inch-thick air filter has an advantage over the one-inch filter in terms of longevity, airflow, and maximum filtering potential. At the same time, a thicker filter is less restrictive and will allow for a better flow of purified air.
A 4 to 5 filter is usually best for people who need superior filtration. Thickness is essential to the size of the air filter, as is length, width and height. It's important to remember the difference between the nominal width and the width of an air filter, it's usually the longest side, and while the height is usually the shortest side, the long size comes second. You can choose not to use factory-installed filter grids and have an HVAC professional install an external filter grid for a thicker filter. If a large filter gets stuck where it doesn't belong, it can damage the air conditioning system and the air won't be cleaned properly.
Nor can you trim it, as this will create holes that will allow things such as dust, dander, pollen and indoor air pollutants to enter. When buying a custom-sized air filter, it's important to remember that the air filtration industry standard is to make the filters measure slightly smaller than their slot or frame, so that they can easily slip into place without bending or breaking. Most large retailers, such as Walmart, Target, and Home Depot, sell air filters, though with a different variety of options and brands to choose from. In conclusion, when selecting an air filter for your home or business, it's important to consider thickness as well as length, width and height. A 4 to 5 inch thick filter is usually best for people who need superior filtration. When buying an air filter, make sure that it measures slightly smaller than its slot or frame so that it can easily slip into place without bending or breaking.
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