This North pancake cartridge is classified P100 as defined by NIOSH 42 CFR Part 84, and are 99.97% efficient against all particulates, including those that contain oil-based aerosols.

Features:

• P100 - 99.97% filter efficiency for protection against particulates, including those that contain oil-based aerosols.
• Fits North APR facepieces - No adapters needed. Fits directly onto North half masks and full facepieces.