I know this is not the proper translation of this door, but at first glance, I thought the door had a military acronym on it. To me, it looks like it says CBRN empty. In the Army, CBRN stands for chemical, biological, radiological and nuclear. Therefore, I saw this and immediately thought, what lies behind this door is an area free of CBRN dangers. Great. Who doesn’t enjoy that?
However, after a second look, I realized that the first letter is not a C after all. Oh, well now, that makes more sense. This place didn’t give me the vibe of a CBRN-free area anyway.