41.   Some used breathing apparatus and thermal imaging equipment because of the thick smoke.

42.   The explosion happened so quickly that the miners had no time to don emergency breathing apparatus, NTV television news reported.

43.   There was no lighting in the culvert but every diver was connected to ground level by breathing apparatus and radio communications.

44.   Thor said in a statement it had never denied the three employees suffered mercury poisoning as a result of mercury vapor that entered their breathing apparatus.

45.   Twelve firefighters armed with breathing apparatus boarded the ship early in the afternoon.

46.   A fire brigade spokeswoman said five units, breathing apparatus and a platform were sent to the building.

47.   A third inmate was put on a life support system and three others from the same cell were revived with artificial breathing apparatus.

48.   Two fire appliances quickly arrived on the scene with firefighters wearing breathing apparatus.

49.   Lorry drivers trapped beneath the Channel Tunnel as smoke and flames filled the Channel Tunnel late Monday criticised the lack of breathing apparatus available to passengers.

50.   Many of the casualties were overcome by toxic smoke, through which rescue workers wearing breathing apparatus battled to find the victims.