California Cosmetology Written ExamSafety and Infection ControlMedium

A cosmetologist finishes trimming a client's hair with electric clippers. According to California Title 16 rules, how should the clipper blades be disinfected before the next client?

  1. APlace the clippers in a UV sanitizer without applying any disinfectant first
  2. BRinse the blades under hot running water only
  3. CImmerse the entire clipper fully in an EPA-registered disinfectant for the full contact time
  4. DWipe the blades and housing with an EPA-registered disinfectant, since electrical tools cannot be immersed in liquid
Show answer & explanation

Correct answer: D. Wipe the blades and housing with an EPA-registered disinfectant, since electrical tools cannot be immersed in liquid

Electrical implements such as clippers, curling irons, and blow dryers cannot be submerged in liquid disinfectant because this would damage the internal components and create an electrical hazard. Title 16 requires that these tools instead be wiped down thoroughly with an EPA-registered disinfectant.

Why the other options are wrong

  • A. Wrong—UV cabinets are for storage, not a substitute for disinfection.
  • B. Wrong—water alone does not disinfect and doesn't meet EPA-registered disinfectant requirements.
  • C. Wrong—immersing electrical tools risks electrocution/damage and is prohibited.

Electrical Tool Disinfection

Electrical implements must be wiped with an EPA-registered disinfectant rather than immersed, to prevent damage and electrical hazards.

  • Never submerge electrical tools in liquid
  • Wipe thoroughly, including crevices
  • Non-electrical metal tools are fully immersed
  • Applies to clippers, irons, dryers

Memory trick: Electrical tools = wipe don't dip, or you'll get shocked

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