Are you wondering what size air conditioner filter you need? It's a common question, and one that requires a bit of knowledge to answer correctly. As an expert in the heating, ventilation, and air conditioning (HVAC) industry, I'm here to help. The most common thickness for air filters is 1 inch, but some may require thicker filters of 4 to 6 inches. Thicker filters can trap more particles and require less frequent changing, but they can also limit airflow and cause system and air quality problems.
When buying a custom-sized air filter, it's important to remember the difference between the nominal air filter size and the actual size of the filter. To determine the size of your air filter, use a measuring tape to measure the length, width, and depth of the filter. Then round to the nearest whole number to determine the nominal size of your air filter. The actual size of the air filter should be 0.25 to 0.5 cm smaller than the slot or frame itself.
It is not advisable to place a 1-unit air filter in a 2-slot slot, since the air follows the path with the least resistance and, if it is not properly sized, it will flow around the filter instead of through it. Even if you are trying to place several air filters in a small space, it is not advisable to stack them on top of each other. Installing several type 1 air filters in a double slot can cause costly damage to the air conditioning unit. When buying an air filter, it's important to note that the air filtration industry standard is to make the filters measure slightly larger than their groove or frame, so that they can easily slide into place without bending or breaking. Don't stack several small air filters on top of each other to fit in a larger air handler. Regular maintenance is also essential for the air conditioning system to work efficiently and maintain good indoor air quality.
Once you know the size of your old air filter, you can easily buy a new one with the same dimensions. There are several great options for buying air filters online and getting them delivered to your doorstep. In conclusion, finding out what size air conditioner filter you need is not as difficult as it may seem. By following these simple steps, you can easily determine what size filter you need and purchase one that fits your needs perfectly.