窒ちっ息そくガスMeanings1nounchoking gas; asphyxiating gasRefers to any gas that causes suffocation, often in industrial, military, or disaster contexts.工こう場じょうで窒ちっ息そくガスが漏もれた。Choking gas leaked at the factory.窒ちっ息そくガスによる事じ故こを防ふせぐため、換かん気きを徹てっ底ていしてください。Please ensure thorough ventilation to prevent accidents caused by asphyxiating gas.