Merv

MERV, or Minimum Efficiency Reporting Value, is a scale used to rate the effectiveness of air filters in capturing particles from the air. It ranges from 1 to 20, with higher numbers indicating better filtration. For example, a MERV 8 filter can trap common dust and pollen, while a MERV 13 filter can remove smaller particles like bacteria and pet dander. Choosing the right MERV rating depends on your specific needs—higher ratings improve air quality but may restrict airflow, so balance is important for both filtration efficiency and system performance.