Particle Filtration Efficiency
Non-powered respirators are challenged with sub-micron salt (NaCl) particles at an airflow rate of 85 L/min to determine the percent efficiency of filtration.
CSA Z94.4.1 (Similar to NIOSH STP0059)
Non-powered respirators are challenged with sub-micron salt (NaCl) particles at an airflow rate of 85 L/min to determine the percent efficiency of filtration.
