High Cleaning Efficiency
Good for medium budget. Will do a very good job for a reasonable price.
Very High Cleaning Efficiency
Ultra High Cleaning Efficiency
The Minimum Efficiency Reporting Value is the standard comparison of the efficiency of an air filter. The MERV scale ranges from 1 (least efficient) to 16 (most efficient), and measures a filter’s ability to remove particles from 3 to 10 microns in size.