Oxygen Tank; Repeated Long Oxygen Releases With Click, Close Perspective.

Oxygen Tank; Releases 1; Five Oxygen Tank Releases With Tank Reverberations; Varying Lengths, Close Perspective. Pressurized Gas.

Oxygen Tank; Releases 2; Four Long, Slowly Tapering Oxygen Release; Close Perspective. Pressurized Gas.

Oxygen Tank; Releases 3; One Long, Oxygen Tank Release; Turn On / Gas Hiss / Turn Off, Close Perspective. Pressurized Gas.

Oxygen Tank; Releases 4; Two Long, Slow Oxygen Tank Fills; With Tank Ringing, Slight Gas Hiss In Background, Close Perspective. Pressurized Gas.