ABSTRACT
Cleanrooms are environments which are protected by
means of suitable segregation measures from contami-
nation by nonviable particles and microorganisms. Such
measures include, for example:
venting segregation, e.g., air filters, pressure cascades,
or directed air stream;
physical segregation by air locks, barriers, or isolators;
control of materials entered into the environment; and
access restriction, and gowning rules for personnel.
