![](http://www.alamy.com/thumbs/6/68BBBDB4-CD46-4002-B533-28329C89D010/2H8HB4F.jpg)
Male technical worker checking up the oxygen supply hose.
Size: 4500px × 3000px
Photo credit: © Yuriy Klochan / Alamy / Afripics
License: Royalty Free
Model Released: No
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