When it comes to air filters, size does matter. If the filter is not the correct size, whether it is too small or too large, air will flow around the filter rather than through it, and as a result, all the air will not be filtered out. This can have a significant impact on the efficiency of your HVAC system. Thicker air filters may automatically seem like the best option.
Thicker means more filtration, right? In most situations, that is the case. Thicker air filters tend to last longer because they have more square meters to capture and retain air particles. To put it into perspective, a 1-inch air filter may need to be changed every month, while a 4-inch air filter could last up to six months. Most HVAC systems are designed to accommodate 1 thickness filters.
However, you can choose not to use factory-installed filter racks and have an HVAC professional install an external filter rack for a coarser filter. At the same time, a coarser filter is less restrictive and will allow better flow of purified air. A deeper depth can also improve filter life and efficiency; they also make it easier for air to enter and exit the filter. The shape and size dictate the ability of the air filter element to flow the maximum amount of air into the engine. Ovens come in multiple sizes and configurations, meaning there isn't a one-size-fits-all filter.
If the filter fits perfectly, use the numbers on the side to choose a replacement every 60 days, or as recommended by the manufacturer. Therefore, the filter slot will measure slightly smaller than the size of the air filter you need to buy. That said, the 1-inch filter may be too shallow, causing a loose fit that allows unfiltered air to enter the ductwork. Changing your HVAC filter is only part of the routine maintenance you have to perform on your system. Even so, understanding the most common air filter size can be a scratch if you're not sure what the numbers mean.
Round up to the nearest inch to create the nominal filter size, which is the measurement you will use when purchasing a filter. When you change oven filters, the first thing to do is to know what size oven filter you have. If you use this method, you'll need to read the fine print of the actual size of each filter when you go shopping. In conclusion, it's important to understand that different sizes of air filters can have an impact on your HVAC system's performance and efficiency. The right size of air filter can help ensure that your system runs smoothly and efficiently for years to come.