In general, 1- and 2-inch air filters are the most commonly installed in standard HVAC systems, while 3- to 6-inch filters are used in larger HVAC systems. It is important to make sure that the filter fits snugly into the air filter compartment, leaving a little space around the edges. The width of an air filter is usually the longest side, and while the height is usually the shortest side, the long size comes second. Knowing how the size of an air filter works is essential, especially if you want to get the right size for your home or office.
HVAC service companies often provide air filter replacement services in addition to system repair and unit installation services. Alternatively, you can choose from filters that are already in stock if your air filter size is available. This can have a major impact on the amount of air contaminants that are filtered and lead to poor indoor air quality. Thicker air filters also have a longer lifespan, as they have a larger surface area to trap and remove contaminants from the air. If that doesn't work, you may be able to find the proper dimensions of the air filter in your HVAC manual.
If you want to replace your air filter but don't know what size you need, it is essential to choose the right size of air filter for your HVAC system. This will ensure that your HVAC system operates effectively.