NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What is the ISO classification of an anteroom that opens into a positive pressure SEC?

ISO 5
ISO 8
ISO 7
ISO 9

The correct answer is: ISO 8

The ISO classification refers to the level of cleanliness and purity of the air in a room. ISO stands for International Organization for Standardization and the numbers indicate the amount of particles allowed per cubic meter of air. In this case, the anteroom is opening into a positive pressure SEC, which means it is a cleanroom with a higher level of positive air pressure, preventing any potential contamination from entering. Therefore, the anteroom would also need to maintain a high level of cleanliness, making an ISO 8 classification the most appropriate option. The other choices, ISO 5, 7, and 9, would not meet the required criteria for a cleanroom that opens into a positive pressure SEC.