self-rescuer

A self-contained device to generate oxygen for breathing.

Japanese Meaning

呼吸のための酸素を自己完結的に生成または供給する装置

During the mine collapse, the worker used his self-rescuer to breathe while rescuers dug him out.

鉱山の崩落時、作業員は救助されるまで自分の呼吸用自給式酸素発生器を使って呼吸した。

Sense（1）

A self-contained device to generate oxygen for breathing.

self-rescuers

（ plural ）