protective breathing equipment pbe or avox in aviation word secured in stowage on aircraft wall at aft galley near cabin crew

aft air aircraft attached aviation avox blaze box breathing cabin check chemical clothing container covering crew dangerous device emergency equipment extinguish fighting fire firefighter fireman flame fumes galley generator hazardous helmet hood hostess interior mask modern neck oxygen passenger pbe preflight pressure professional protect protective rescue safety search secured smoke storage stowage technology tool toxic trained transportation wall word