When is respirator fit testing required in BC?
Under WorkSafeBC's Occupational Health and Safety Regulation, a worker must pass a fit test before being issued a tight-fitting respirator, using CSA Standard Z94.4 procedures. Section 8.40 of that Regulation then requires retesting at least once a year. Workers should also be retested when they change respirator model or size, or have facial changes such as significant weight change or dental work.






