When it comes to energy efficiency, it is essential to understand the differences between MERV and FPR ratings. MERV (Minimum Efficiency Reporting Value) is the primary rating system used for air filtration, while FPR (Filter Performance Rating) takes into account the pressure drop and dust-holding capacity of air filters. The MPR measures ratings based on sizes from 0.3 to 1 micron, while FPR ratings are on a scale of 4 to 10. Generally, MERV 8 filters can filter 90% of the particles suspended in the air, MERV 11 can remove around 95%, and MERV 13 can block approximately 98%. In addition, filters with an FPR rating of 4 to 5 will not restrict airflow as much as filters with a higher FPR rating.
However, if the MERV rating is too high (above MERV 1), it can increase system backpressure and block air flow through the central air system, worsening the efficiency of the air conditioning system. Older models can work harder with a MERV 13 filter installed than when they originally had a MERV 6 filter in the air intake. The main disadvantage of using filters with an FPR rating of 8 to 9 is that they reduce airflow more than filters with a lower FPR rating. Fortunately, you don't have to make a long list of pros and cons of the MERV versus the MPR or spend hours comparing the FPR to the MERV. The filters will perform lower than their MERV rating if the speed is higher than the tested speed, and will exceed their MERV rating if the speed is much lower.
However, since air filters play a critical role, knowing the MERV and FPR ratings will help you get the most out of your heating and cooling system. When selecting an air filter for your home or business, it is important to consider both MERV and FPR ratings. The MERV rating indicates how effective a filter is at removing particles from the air, while the FPR rating indicates how much pressure drop will occur when using that filter. A higher MERV rating means that more particles will be removed from the air, but it also means that more pressure drop will occur. A higher FPR rating means that less pressure drop will occur, but it also means that fewer particles will be removed from the air. In conclusion, when selecting an air filter for your home or business, it is important to consider both MERV and FPR ratings.
Knowing these ratings will help you get the most out of your heating and cooling system while ensuring optimal energy efficiency.
