Wipe Wise – Are You Choosing the Right Cleanroom Wipes?

Which type of wipe is best for particle-sensitive ISO Class 5 environments?

  • a) Cotton wipes
  • b) Nonwoven polyester
  • c) Knitted polyester ✅Explanation: Knitted polyester wipes offer the lowest particle release.
  • d) Delicate task tissue wipes
  • What is the advantage of a sealed-edge wipe?

    • a) Lower cost
    • b) Higher absorbency
    • c) Reduced fiber shedding ✅Explanation: Laser- or ultrasonic-sealed edges reduce the risk of contamination.
    • d) Easier to cut

    What does “validated sterile” mean in cleanroom wipe packaging?

    • a) Confirmed free from dust
    • b) Disinfected with alcohol and confirmed for proper sterility
    • c) Gamma-irradiated and confirmed for proper sterility ✅Explanation: Sterile wipes are gamma-irradiated and tested for SAL (Sterility Assurance Level).
    • d) Individually wrapped and confirmed for proper sterility

    Which wipe would be the most absorbent for a large spill in the cleanroom

    • a) Cotton wipe
    • b) Meltblown polypropylene
    • c) Polyester/cellulose blend ✅Explanation: Polyester/cellulose blends are absorbent and chemically resistant.
    • d) Microfiber only

    What is the purpose of double-bagged sterile wipes?

    • a) Longer shelf life
    • b) Easier disposal
    • c) Facilitate transfer into controlled areas ✅Explanation: Double-bagging helps maintain sterility during cleanroom entry and processing to lower class rooms
    • d) Lower damage
      .