CSA Z94.4.1:21 PDF Download

A standard called CSA Z94.4.1:21 focuses on the performance specifications for filtering respirators. A national respirator certification program in Canada is intended to be supported by it. This standard's scope outlines the performance specifications for airborne particle filtering respirators. It excludes gas/vapor removal respirators, which will be covered in a subsequent edition.

Additionally, neither the requirements for combination respirators in the atmosphere-supplying mode nor respirators that operate in the atmosphere-supplying mode are covered by this standard. Additionally, it does not include items like surgical masks or cotton masks that do not offer respiratory protection performance that meets at least Protection Level 1. Also excluded from the standard are the processes for requesting, managing, and issuing certifications of respirator approval, as well as sampling and quality control criteria for the manufacture of respirators.