мікрофон респіраторної маски
ear-worn microphone
ear-worn radio microphone
microphone switch box and neck strap
wireless microphone
talk-back microphone
integral microphone
lip-type microphone
standard microphone
wall listening microphone
field protective mask
gas mask
gas mask test
optical gas mask
protective mask
ski-mask
armor ballistic bullet proof face mask
armor face mask
covering mask
head lamp mask
hose gas mask
quick-donning mask
quick-donning oxygen mask
mask
ABC-protective mask
acid and organic vapors gas mask
back carry position (of the gas mask)
noncombatant mask
gas position of the mask
service gas mask
clear the mask
fire brigade gas mask
mask fires