The Oxygen Tank is a cylindrical, high-pressure vessel designed for durability in harsh environments. It features a robust metal exterior with visible welding seams and industrial-grade valves, painted in a muted, utilitarian color scheme with hazard stripes for visibility. The surface shows signs of wear, including scratches and dents, indicating heavy use. A digital gauge on the side displays oxygen levels with a faint glow, adding a functional sci-fi element.