What is an anaerobic workstation ? Is it an anaerobic chamber or a station providing various anaerobic gases?
If it is an anaerobic chamber you have to provide a system in which you insert anaerobic gas into your medium or devices, which all have to be gas tight. With anaerobic gases (most likely nitrogen) you can flush out oxygen from the system. With some indicators (resazurin) or measuring devices (optode) you can check the oxygen content in liquid medium for example.
I think Dr Jan explained your case very well, I recommend his answer
you can follow his guide paper for anaerobic condition
Plugge, C.M. 2005. Anoxic media design, preparation, and considerations. in: Environmental Microbiology, Vol. 397, Elsevier Academic Press Inc. San Diego, pp. 3-16.