When it comes to air filtration, the FPR and MERV ratings are two of the most important factors to consider. FPR ratings range from 4 to 10, while the MERV filter classification is domestic and commercial. The higher the filter rating, the smaller the particles it will capture and the higher the percentage of particles that will be filtered out. Low-efficiency filters are usually within the MERV 1-4 range, while high-efficiency filters are those of the MERV 13 and higher.
It's important to note that the MERV scale is not linear; the difference between a MERV 6 and a MERV 8 is almost double in terms of the percentage of particles captured. When selecting an air filter, it's essential to keep in mind that as the MERV rating increases, the filter becomes more restrictive and more pressure and energy will be needed to expel air. Using an air filter with a MERV rating that is too high can be just as bad as using one that is too low. Air filters with higher MERV ratings may filter more, but the thickness of the filter material may restrict airflow.
This can reduce comfort, increase energy use, and accelerate the wear and tear of air conditioning components. In particular, using an air filter with a MERV rating that is too high can damage the compressor, heat exchanger, and air conditioner coil. If the filter is too dirty or too sturdy, it can cause airflow problems that impair efficiency and performance. To determine resistance, filters use the MERV classification system.
In short, the higher the MERV rating, the stronger the filter will be. The MERV classification is essential to finding the right oven filter for your home. If you're trying to choose between a MERV 8 air filter and a MERV 11 air filter, here's what you need to know. It may seem that they are almost the same, but there are some clear differences between them.
This comparison chart helps highlight these differences to make it easier to decide which one will work best. For reference, filters with a MERV rating of twelve are around 95% effective at removing particulates from the air, while those with a MERV rating of thirteen are around 98% effective. Newer units shouldn't have airflow problems with a higher MERV rating, although older models can work harder with a MERV 13 filter installed than when they originally had a MERV 6 filter in the air intake. An FPR four filter usually lasts about six months, while an FPR of six or more can last one to three years, depending on the degree of air pollution.
Since the MERV classification system is standard, it makes it easier to compare filters with different MERV ratings. If you're concerned about inhaling fine air particles, that's another reason to choose a MERV 11 air filter over a MERV 8 air filter. Each air filter has its pros and cons, but both MERV 8 air filters and MERV 11 air filters are suitable for residential use. You can use this table to better understand how filters classified with FPR and MPR compare to those classified with the more standard MERV classification system.
Based on their characteristics mentioned above, a MERV 8 is considered a superior filter compared to those with lower ratings. A higher MERV rating may mean slightly more restricted airflow; however, most current HVAC systems are capable of handling a MERV 11 air filter without overloading the system.
