We have a class D cleanroom and a class C clean bench in it. Our material is cleaned when it is introduced into the class D cleanroom. Does it have to be cleaned again when it is introduced / processed in the clean bench? Is there a requirement according to GMP?

We have a class D cleanroom and a class C clean bench in it. Our material is cleaned when it is introduced into the class D cleanroom. Does it have to be cleaned again when it is introduced / processed in the clean bench? Is there a requirement according to GMP?

There is no simple answer to this question. It is necessary to take a closer look at the process and the risks. There are no general guidelines in principle.