Here are entered works on equipment that provides the user with a safe supply of air or oxygen in an environment where air is unavailable or unsafe to breathe. Works on equipment used to provide medical care are entered under Respirators (Medical equipment).
Here are entered works on equipment used to provide medical care. Works on equipment that provides the user with a safe supply of air or oxygen in an environment where air is unavailable or unsafe to breathe are entered under Breathing apparatus.
