Are you looking for the most common air filter sizes and where to buy them? If so, you've come to the right place. Air filters are essential for keeping your HVAC system running smoothly and efficiently. By using the right size filter and changing it regularly, you can experience cleaner indoor air and fewer system problems. When it comes to air filters, most white pleated filters are inherently the same within each efficiency level, and vary slightly, if at all, between brands.
It's important to note that filters don't need to fit a “tight seal”, but you should be able to easily install and uninstall the filter effortlessly. Improperly sized air filters can put excessive strain on your HVAC system, damage it, and increase your energy bills. The easiest way to identify the size of the AC filter is to remove the existing filter from its slot and examine the filter frame. You can also choose not to use factory-installed filter grids and have an HVAC professional install an external filter grid to get a coarser filter.
If you use a room air purifier and need to replace the filter, it's important to find the correct size replacement HEPA filter. The filter should be slightly smaller on each side of the filter housing slot, allowing you to slide the filter in and out with ease. This creates charged particles that will attract other particles in the air for better filtration when using electrostatic filters.These common size air filters are the sizes that can normally be easily found in large stores such as Home Depot, Walmart, and Lowe's. If the filter is not the right size, either too small or too large, air will flow around the filter rather than through it and, as a result, will not leak out all the air.
