crew protective breathing equipment, Protective Breathing Equipment, PBE, donning of protective breathing equipment, crew member protective breathing equipment, crew member PBE, ensure oxigen supply during surgery, operate breathing machines, operate breathing equipment, operate equipment for breathing, maintaining broadcast equipment, protect broadcast equipment, conserve broadcast equipment, maintain broadcast equipment, emergency oxygen breathing equipment, oxygen breathing equipment, breathing protection required, breathing protection must be worn, wear gas mask, respiratory equipment must be used, face mask must be worn, industrial noise protective equipment wearing, wearing protective equipment against industrial noise, personal protective equipment wearing, wear protective equipment against industrial noise -*- équipements de protection respiratoire pour l'équipage, équipement de protection respiratoire, inhalateur protecteur de membre d'équipage, faire fonctionner les appareils respiratoires, entretenir du matériel de diffusion, équipement respiratoire à oxygène de secours, équipement d'inhalation d'oxygène, masque obligatoire, port du masque obligatoire, protection obligatoire des voies respiratoires, obligation de protéger les voies respiratoires
