Where necessary and convenient, communication channels must be established to increase efficiency of work. For example: when one is working in a BSL III laboratory room and has to speak to a colleague in the office area, it is easier to call this colleague instead of having to take off his/her laboratory coat and gloves, wash hands, and walk to the office area. This prevents also that people walk around in laboratory coats just because they are getting tired of repeatedly taking it off and dressing oneself again.

It may also be possible that some laboratory rooms are situated in another building.

Mobile phone use should not be allowed inside the laboratories because of the risk for infection (staff touching the phone without washing hand, potentially contaminating it which increases the risk for infection). Besides, mobile phones may distract staff from jobs requiring all their attention and focus.