0:30
Please enable Javscript
A patient breathes through an oxygen mask as they snore during sleep.
0:19
Please enable Javscript
Gas mask breathe, in ,out, multiple
0:04
Please enable Javscript
Putting on a gas mask
0:01
Please enable Javscript
Picking up a gas mask, small scrape
0:01
Please enable Javscript
Taking off a gas mask
0:03
Please enable Javscript
Gas mask, breathe out
0:01
Please enable Javscript
Grabbing a gas mask, fast
0:01
Please enable Javscript
Tossing down a gas mask, military
0:15
Please enable Javscript
Gas mask, breathe in and out fast, multiple times, military
0:01
Please enable Javscript
Setting down a gas mask, military