The average efficiency range of a MERV 5-10 filter is likely to require changes every two to three months. However, this range can vary depending on the filter material and other factors. Air filters rated MERV 11 or higher usually need to be replaced every three to six months. Some air filters can last up to six months, while others must be changed monthly.
The thickness of the air filter is an important factor in determining its lifespan. Thicker filters tend to last longer than thinner ones. To determine the lifespan of an air filter, examine its thickness and MERV classification rather than the brand. For example, it is recommended to replace MERV 8 filters every 90 days. When replacing an air filter, make sure to use one that is the correct size.
The MERV 13 filter is located at the top end of residential air conditioning filters and can trap up to 90 percent of particles with a size of 3.0 to 10.0 microns and up to 50 percent of those from 0.3 to 1.0 microns. It is important to note that the lifespan of an air filter can vary depending on the environment in which it is used. If you live in an area with high levels of dust or other airborne particles, you may need to replace your air filter more frequently than if you live in a cleaner environment. In addition, if you have pets or smoke indoors, you may need to replace your air filter more often than if you do not have these factors present in your home. This is because pet dander and smoke particles can clog up an air filter more quickly than other types of particles. Finally, it is important to check your air filter regularly and replace it when necessary. This will ensure that your home's air quality remains high and that your HVAC system runs efficiently.
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