In this episode Mark Reggers is joined by guest Kevin McComb, 3M's Technical Services Manager for the Personal Safety Division in Australia and New Zealand to discuss gas detection in confined spaces. Confined spaces present many unseen challenges, one of these is the potential for toxic atmospheric conditions within the space. Prior to entry, it's vital that the atmosphere is tested to check the oxygen concentration and to determine the presence of hazardous fumes, gases and vapours, as well as the respective levels of these potential hazards.