STS-125 Mission Specialist 2 (MS2) Megan McArthur and Commander Scott Altman work with the Lithium Hydroxide (LiOH) cannisters behind the LiOH Volume panel door (MD52M) in the middeck.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/144614754@N02">NASA Hubble Space Telescope</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasahubble/28162882361/">STS-125 Crew Members Work with the LiOH Cannisters on the Middeck</a>