Particle size efficiency

of an air filter also known as “particle size removal efficiency” means the fraction (percentage) of particles that are captured on the air filter. Particle size efficiency is measured in three particle size ranges: 0.3-1.0, 1.0-3.0, 3.0-10 micrometers (μm). Particle size efficiency abbreviated as “PSE” in the required labels for air filters.

required labels for air filters.