I would like some more information about validating an ISO 5 cleanroom. In the last company I worked at, we did six whole days of environmental monitoring, they would consist of 3 days of static testing and three days of dynamic testing. During these test, we utilized nonviable particle counts, viable air and surface. Now at my new company, we utilize nonviable particle counts, viable air and surface samples as well as settling plates.
My question about validation is based around the fact that we are completely renovating our ISO 5 cleanroom with HEPA filters being replaced. What steps are needed to validate this room?