When it comes to air filters, size matters. If the filter is too small, dirt particles, such as dust, mold, and other air pollutants, can slip through the openings and recirculate in your home, leading to poor air quality and potential health problems. On the other hand, if the filter is too large, it won't fit in the slot. So, can you use an air filter that's too small? The answer is no. It is essential to have the correct dimensions when replacing an air filter.
Most air filters have a replacement schedule specified in the user's manual or on the company's website. But first you can answer the question: “What size air filter do I need?” Let's say you want to replace your air filter, but you don't know what sizes of air filter you need. For example, you'll need to replace a 1-inch air filter every month, while a 4-inch air filter can last six months without needing to replace it. The filters are slightly smaller than their slot for easy replacement. Some HVAC units may need a filter with unique or unusual dimensions.
In these cases, it is necessary to order a custom filter. Placing a large filter in an unsuitable place can damage the air conditioning system and not clean the air properly. Usually, air controllers are installed near the air conditioning system, and in some homes, air controllers are installed in ducts. On the other hand, 4, 5, or 6-inch air filters are found in whole-house filters installed on an air controller. If the air filter frame does not have the sizes indicated or looks wrong, you can always measure the air filter yourself.
Measure it yourself. If the dimensions are too faded to read or there is no air filter to look at, it's time to do it yourself. Most online air filter retailers have a custom air filter page, and there you'll find a choice of custom sizes. Understanding how the size of the air filter works is crucial for ensuring that your home or office has clean and healthy air. Inserting an incorrectly sized filter may cause it to deform, damage it, or reduce its ability to function properly.
The oven filters must fit securely, but there is no need to force them into position. If you have to force the filter into its slot, it's probably too big. In conclusion, using an air filter that is too small is not advisable as it can lead to poor air quality and health problems. It is essential to have the correct dimensions when replacing an air filter and make sure that it fits securely without having to force it into position.