Certifications of John Shah By John Shah Posted 21/02/2018 In About Us Certifications of John Shah2018-02-212018-02-21https://www.breathingair.com.au/wp-content/uploads/2018/07/final.pngBreathing Air Australiahttps://www.breathingair.com.au/wp-content/uploads/2018/07/final.png200px200px John Shah Recent PostsHydrotestAnnual Cylinder Visual InspectionHealthy Experienced Diver Died while Diving with No Apparent Reason: A Classic Case of Carbon Monoxide PoisoningALERT! Old Aluminum Scuba Cylinders at Risk of Explosion