Consumers should immediately stop using the diving masks and contact Ocean Technology Systems for instructions on conducting a test of the regulator and returning the masks for a free repair. Any purge assemblies that are loose or have skipping threads should be taken out of service and replaced. For more information, consumers may contact Ocean Technology Systems toll free at 1-800-550-1984 or by e-mail at recall@otscomm.com . Consumers may also visit the firm's website for instructions on how to inspect the mask. Consumers may also view the release by the US CPSC on the Commission's website. Date modified: 2011-03-22