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The best energy-efficient windows feature multiple panes of glass filled with an inert gas, typically argon or krypton, that further insulates the window.—Amy Deyoung, USA Today, 28 Jan. 2026 The fusion reaction is carried out in a liquid lithium pool, which is dynamically structured with inert gas.—Abhishek Bhardwaj, Interesting Engineering, 23 Sep. 2025 An ion engine works by using an inert gas as a propellant; often this gas is xenon, but Takahashi used argon.—Keith Cooper, Space.com, 16 Sep. 2025 Wine sprays: Wine sprays work by replacing oxygen in the bottle with inert gases (like nitrogen, argon and carbon dioxide), which creates a barrier that prevents oxygen from penetrating the wine.—Bestreviews, Mercury News, 25 Aug. 2025 See All Example Sentences for inert gas