1.   Local companies have been persuaded to foot the bill for specially-developed breathing masks now worn by children on their way to and from school.

2.   Burly firefighters, their breathing masks swinging at their belts, walk on, offering a few polite thank-yous.

3.   But they wore goggles and breathing masks, and they looked into a closed-off Battery Park, where hundreds of soldiers massed, as if for war.

4.   He hopes to collaborate on larger clinical trials of the breathing masks.

5.   Officers at the scene are equipped with heavy-duty gear, including breathing masks, to protect them from hazardous air.

6.   Pick a dust or breathing mask based on the work you plan to do.

7.   Some people have been given tetanus shots, while workers clad in breathing masks and protective suits are being thoroughly scrubbed and disinfected.

8.   The dead man was wearing some sort of breathing mask.

9.   They range from soot-clogged breathing masks to memorial candles and missing-person posters.

10.   To prove it, the scientists trained kangaroos to wear breathing masks while walking and hopping on a treadmill.