The Miller P100 SA00818 filter welding respirator pack of 2 is a set of high-quality filter cartridges designed for welding respirators. Made by the trusted brand Miller, these P100 filter cartridges are specifically designed to provide protection from airborne particles and harmful fumes during welding processes. This pack of 2 cartridges ensures that users have a steady supply of clean, safe air to breathe while working on welding projects. Ideal for professionals in various industrial settings, these filter cartridges are a reliable and essential component of personal protective equipment. New dirty bag from sitting in a warehouse. EXPIRED 10/25. LS