LOL! There are people with a lot of attention to detail on this forum!
The person at her desk is a lady called Christel who looks like she was trying to get out of the way of the picture.
I presume on the filter mask, you mean the set of trays on the left of the picture Sticks. if this is the case, then you're looking at my in-tray which definitely doesn't have a filter mask - I think it was the plastic bag that I was carrying the banners round in!
