Infection Control, Sanitation, and Disinfection
Infection control is the highest-stakes topic in nail technology and a heavy scoring area on the Hawaii exam. Questions test whether you can separate cleaning, sanitizing, disinfecting, and sterilizing, apply an EPA-registered hospital-grade disinfectant correctly, and handle a blood exposure without panic.
Core rules
- Cleaning removes visible debris with soap and water. Sanitizing reduces bacteria on surfaces. Disinfecting destroys most pathogens on nonporous items. Sterilization destroys all microbial life, including spores, and is not a salon procedure.
- Disinfectants must carry an EPA registration with a hospital-grade, tuberculocidal claim. Mix at label strength, use for the full label contact time (commonly 10 minutes), and replace when cloudy or debris-laden.
- Two-step implement care: scrub with soap and water, dry completely, then fully immerse. Submerged means submerged - handles resting above the liquid line are not disinfected.
- Porous items (buffers, files, orangewood sticks, cotton, pedicure liners, pumice) are single-use or client-keep. A UV cabinet is storage, not disinfection.
- Pedicure basins: clean with soap, then disinfect with hospital-grade disinfectant for the label time, and remove and clean the jet screen or impeller. Debris in the intake is a classic inspection finding.
- Wash hands before and after every client; wear gloves for any service that may contact blood or broken skin; never touch a clean implement after touching a client.
- Blood exposure: stop, glove, cleanse with antiseptic, bandage, discard contaminated single-use items, disinfect reusable tools and surfaces, and document the incident.
Worked example
A tech finishes a pedicure, wipes the nippers with 70% isopropyl alcohol, and returns them to the drawer. Why does this fail? The wipe never removes the debris that shelters organisms, alcohol flashes off before an adequate contact time, and most alcohol labels carry no tuberculocidal claim. The correct chain is scrub, dry, immerse in a hospital-grade disinfectant for the labeled time, dry, store covered.
Traps that cost marks
Equating "sanitized" with "disinfected"; skipping the wash step; shortening contact time because the salon is busy; leaving tools overnight in a jar of discolored disinfectant; substituting a UV lamp for a disinfectant; and reusing a file because "it only touched the free edge."