When it comes to air conditioning systems, it is essential to use the right size filter for optimal performance. To ensure you get the right size filter, you need to measure the air intake and the filter frame. Most filters have the sizes listed on the side, including the length, width, and depth in inches. If your heating, ventilation and air conditioning system (HVAC) has an air filter, you can check its size to make sure you can get the correct replacement.
It is important to note that the actual size should be 0.25 inches to 0.5 inches smaller than the standard size. If the actual dimensions do not appear in small print on the filter frame, we recommend measuring the filter to check it. Dimensions shall include height, width, and depth. In some cases, air filter measurements are not necessarily listed as exact physical dimensions. Sometimes, the manufacturer uses a model number instead.
If you have the model number, you can calculate the dimensions. If your air conditioning system uses a whole-house filter (they are near the central furnace or air conditioning unit), the model number will most likely appear, not the dimensions. Use a measuring tape to measure the length, width, and depth of the air filter. Air filters generally come in a variety of standard sizes, and some can be adapted to fit different sized filter boxes or air return openings. Be sure to install the new filter facing the correct direction.
Look for arrows on the filter frame that indicate the direction of the air flow. A higher MERV rating means that an air filter is more effective at removing smaller particles from the air. The MERV standard is mainly used to measure the performance of filters designed for forced air conditioning systems. But these are usually filters with a rating of at least MERV 11, the classification in which filters begin to trap most particles the size of common allergens. Look at the place where the return duct connects to the oven and there should be a plate that covers the slot where the air filter enters. Colorfil filters, originally created for NASA, help eliminate chemicals and odors at a molecular level that normal air filters cannot remove. If your old air filter doesn't have its measurements printed on its side, you can measure it yourself with a measuring tape.
It is essential to use an appropriate size air filter for your HVAC system to keep it running smoothly and take advantage of all its benefits. Just like if you measure the filter itself, make sure that your new filter fits snugly into its slot with some space around its edges. Air filters have a MERV rating which measures how effectively they filter small particles from the air. Make sure you get an appropriate size and MERV rating for your system so that it can work optimally.