Scuba diving regulators are being recalled because they may be a drowning hazard. Huish Outdoors is recalling about 4,500 regulators after the Consumer Product Safety Commission said the regulators can restrict airflow at tank pressures below 500 pounds per square inch. The regulators were sold nationwide from October 2017 to June 2018 under the brand names Hollis and Oceanic. Anyone who owns the regulators should stop using them immediately and contact a local Hollis or Oceanic dealer for a free repair. Dealers in Northwest Florida are MBT Dive and Surf in Pensacola and Emerald Coast Scuba in Destin. No injuries have been reported.