Practice Test GeeksCSPT - Compounded Sterile Preparation Technician Practice Test
← All CSPT Flashcard Decks

Cleanroom Facilities and Equipment Flashcards

6 cards from real CSPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Cleanroom Facilities and Equipment flashcards as text

  1. What is the required ISO classification for the buffer area in a sterile compounding facility?

    Answer: ISO Class 7

    The buffer area must maintain ISO Class 7 air quality conditions per USP 797.

  2. How often should HEPA filters in a laminar airflow workbench be certified?

    Answer: Every 6 months

    HEPA filters in LAFWs and other PECs must be certified at least every 6 months.

  3. What is the primary difference between a horizontal LAFW and a vertical LAFW?

    Answer: In a horizontal LAFW air flows back to front; in a vertical LAFW air flows top to bottom

    The key difference is airflow direction: horizontal LAFWs push air from the back wall toward the technician, while vertical LAFWs direct air downward from the top.

  4. What is the purpose of a pressure differential between the buffer area and the ante-area?

    Answer: To prevent less clean air from flowing into the cleaner buffer area

    A positive pressure differential ensures air flows from the cleaner buffer area outward to the less clean ante-area, preventing contamination.

  5. Which cleaning agent is recommended for daily cleaning of the interior surfaces of a LAFW?

    Answer: Sterile 70% isopropyl alcohol

    Sterile 70% IPA is the standard agent for daily cleaning of LAFW interior surfaces.

  6. What does a Biological Safety Cabinet (BSC) provide that a standard horizontal LAFW does not?

    Answer: Personnel protection through inward airflow at the front opening

    A BSC provides both product protection and personnel protection through inward airflow at the front opening and downward HEPA-filtered air.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. ptcb.org — Late registration, registration deadline, renewal, test delivery, eligibility, fees, exam format, passing score, score release, test dates · verified Oct 2026
  2. myaccount.ptcb.org — Retake fee, retake policy · verified Oct 2026