Training, based on written protocols, is essential for proper cleaning of a cleanroom.Cleanroom personnel should have a good understanding of how and what they are to clean and why. They will perform much better if they know what they are expected to do.
Written protocols define the SOPs describing cleaning methodology. SOPs tell personnel what needs to be cleaned, what tools (wipers, mops, swabs, cleaning agents) are to be used, how often to clean, and how to do the cleaning.
Personnel need to be trained using these SOPs, and then tested to ensure proficiency in cleaning and maintenance procedures. Plus, personnel should be retrained on a regular schedule. The written SOPs should be available at all times; visual aids, such as posters or graphs, can be used to reinforce the training.
From: Cleaning Protocols for USP 797 Compliance