When it comes to air filtration, the Minimum Efficiency Reporting Value (MERV) is a system used to evaluate the efficiency of an air filter based on its effectiveness in trapping particles of different sizes. The MERV rating you choose to use should depend on the requirements of your facility. Not all types of buildings require very clean air, but getting a filter with a high MERV rating will only help. For HVAC systems, ASHRAE recommends a filter with a minimum MERV rating of 13, but MERV 14 or higher is preferred.
Lower MERV values filter less particles, while higher values are more restrictive. Filters that are MERV 8 to 13, unlike fiberglass, can effectively filter small particles and reduce the pressure drop. It's important to note that MERV and HEPA are two different types of air filters, although you've probably seen both related to air filtration. Mathematics seems to tell you that if you want the best air quality, you should buy a filter in the MERV 13-16 category and call it a day.
You are now equipped to monitor your air filter and change it regularly to the right MERV value for your home and family. Basically, the higher the MERV rating, the greater the air filtration capabilities of a particular filter. Oh, MERV, if there were any clearer reason why you're going to be replaced by ISO 16890, it's the confusion of 95% air filters.
