c/Industrial breathing sets

Information
lexicalization	eng: Industrial breathing sets
subclass of	(noun) a group of things of the same kind that belong together and are so used; "a set of books"; "a set of golf clubs"; "a set of teeth" set
has instance	e/Blackett's Aerophor
has instance	e/Deadspace (in breathing apparatus)
has instance	e/Mine rescue
has instance	e/Oxygen Breathing Apparatus
has instance	e/SEFA
has instance	e/Self-contained breathing apparatus
has instance	e/Self-contained self-rescue device
has instance	e/Siebe Gorman Proto
has instance	e/Siebe Gorman Salvus
has instance	e/W64 Self-rescuer