When it comes to air filtration systems, a MERV 16 rating is one of the highest possible. These filters are densely packed with fibers, trapping almost as much as a HEPA filter. MERV 16 filters can remove particles from 0.3 to 1 micron in size with ease. On the other hand, Merv 11 air filters may not be as effective at trapping tiny particles, but they are more cost-effective and work with a variety of HVAC systems.
For settings that require absolute cleanliness, such as operating rooms and cleanrooms, MERV 17 to MERV 20 filters are commonly used. The higher the MERV rating, the better the filter is at trapping small particles. All air furnaces and central air conditioning units can handle MERV 16 filters; however, since they tend to be quite deep compared to traditional filters, an aftermarket housing is required for installation. In most cases, a MERV 16 furnace and an AC filter would offer twice the efficiency of a MERV 13 filter at the submicron level.
