Crossword puzzle clue "breathing apparatuses"

RESPIRATOR, an appliance which provides artificial respiration

AGER, one that ages

CAPSTAN, an upright device for winding in heavy ropes or cables

HEATER, an apparatus for heating

HELM, to steer a ship

HOIST, to raise with tackle

REACTOR, one that reacts

REDUCTOR, an apparatus for the reduction of metallic ions in solution