MERV is an acronym that stands for Minimum Efficiency Reporting Value. It measures the effectiveness of air filters in capturing airborne particles. The higher the MERV rating, the better the filter is at capturing particles. The MERV rating system is used to rate air filters on a scale of 1 to 16, with 1 being the least effective and 16 being the most effective.
The optimal MERV rating for your air filter depends on your specific needs and preferences. However, a good MERV rating for most homes is between 8 and 11. Filters with MERV ratings in this range are effective at capturing common airborne particles, such as dust, pollen, and pet dander, without significantly restricting airflow.