When it comes to keeping your home's air clean and healthy, the size of your air filter matters. The right size filter will ensure that all of the air in your home is filtered properly, while the wrong size can lead to air bypassing the filter and not being cleaned. To make sure you get the right size filter for your home, it's important to understand the difference between nominal and actual sizes. The nominal size of an air filter is the rounded number that appears on the label packaging.
This number is based on the actual size of the filter, which is usually printed along the edge of the filter frame. It's important to note that the nominal size is likely to differ from its actual size. To double check, you can measure the filter and round down to the nearest integer to determine its nominal size. The actual size of your air filter should be 0.25 -0.5 smaller than the slot or frame itself.
This allows for a little wiggle room in the slot of your HVAC unit, so you can easily slide the filter in and out without it bending or breaking. If you have to jam the air filter to install it, you should try a different brand or a custom-sized air filter with a slightly smaller actual size. When purchasing a custom-sized air filter, it's important to remember that nominal dimensions refer to the rounded number used in the label packaging of both air filters and wood. Once you determine the exact dimensions that work best for you, place an order for your filter size with the exact fraction or decimal of your preferred measurements.
Otherwise, you may get a different actual size than you expected.Atomic Filters offers custom sizes ranging from 8 x 24 x 1 to 25 x 30 x 1.If you're not sure what size you need, it's best to measure the existing filter that's already there, assuming it's the right size. If you use a room air purifier and need to replace the filter, it's important to find the correct size replacement HEPA filter. Changing your HVAC filter is just one part of routine maintenance you must perform on your system. It's important to make sure you get an air filter that fits properly so that all of your home's air is filtered correctly. By understanding nominal and actual sizes and measuring your existing filter, you can make sure you get an air filter that fits perfectly.