California Cosmetology Written ExamSafety and Infection ControlHard
An inspector reviews a salon's disinfectant solution used for soaking combs and asks how often the solution must be changed. According to Title 16 and manufacturer guidance, when must a technician replace the disinfectant solution?
- AOnly once per month regardless of appearance
- BOnly when a client specifically requests it
- CDaily, or immediately if it becomes visibly diluted, cloudy, or contaminated with debris
- DEvery 6 months to save on product costs
Show answer & explanationAnswer & explanation
Correct answer: C. Daily, or immediately if it becomes visibly diluted, cloudy, or contaminated with debris
Disinfectant solutions lose efficacy as they become diluted with water, debris, or hair/skin particles. Title 16 requires solutions to be changed at least daily, and immediately whenever they appear cloudy, dirty, or diluted, to ensure implements receive an effective kill.
Why the other options are wrong
- A. Monthly changes would allow the solution to become ineffective long before then.
- B. Client requests are irrelevant; the rule is based on solution condition and time.
- D. Six months is far too infrequent and violates health and safety code.
Disinfectant Solution Replacement
EPA-registered disinfectant solutions must be changed at least daily and immediately if visibly dirty, cloudy, or diluted to maintain effectiveness.
- Cloudy or discolored solution indicates reduced potency.
- Debris in solution can shield pathogens from contact.
- Manufacturer instructions on the product label also dictate replacement frequency.
Memory trick: 'Cloudy means change it now' — never trust a dirty-looking solution.