In this episode Mark Reggers is joined by guest Terry Gorman, 3M’s Occupational Hygienist for the Personal Safety Division in Australia and New Zealand to discuss respiratory fit testing. AS/NZS 1715:2009 - Selection, Use and Maintenance of Respiratory Protection, states that: “Employers shall ensure a suitable fit test is carried out for all users of Respiratory Protective Equipment with a close fitting face piece at least annually or whenever there is a change in the wearer’s facial characteristics.” What exactly is facial fit testing and why is it so important for workers wearing a respirator to be fit tested?