Author: Lisa Bonner

September 30, 2025

ASTM F2100 Medical Face Mask Standard Now Measures Filtration Efficiency Using Sodium Chloride

In January 2023 the ASTM F23 Biological Committee balloted to revise the Sub-Micron Filtration Efficiency Test Method used in ASTM F2100. This change was reflected in the new revision published on 01 March 2023 and updated the Particle Filtration Efficiency...