20-micron filter is more efficient than 5-micron filter

20-micron filter is more efficient than 5-micron filter.
A. True
B. False

Right option is B. False

The average size of the openings between pieces of the filter media are represented in microns. For example, a 20-micron filter has larger openings than a 5-micron filter. Consequently, the 20-micron filter element will let larger particles pass through the filter than the 5-micron media would.