Sanitation, Safety, and Infection Control
Know the three levels
Nearly every sanitation question reduces to one of three levels of microbial control. Sanitation mechanically removes dirt and some microbes from surfaces and linens. Disinfection destroys most pathogenic organisms on nonporous implements and is the level required for combs, clips, shears, and clipper blades between clients. Sterilization destroys all microbial life including spores and is not required for routine barbering tools.
The practical rules
Implements must be cleaned with soap and water and scrubbed before immersion in an EPA-registered, hospital-grade disinfectant mixed to label dilution and left for the full contact time. This is where traps live: a question will describe a barber who wipes shears with a towel, or sprays and immediately wipes, and that is always the wrong answer. Porous items - towels, neck strips, cotton, wooden handles - cannot be reliably disinfected, so they are single-use or laundered. Anything that draws blood goes into a sharps container; a blood spill is cleaned with gloves on and then disinfected.
Hands and the client
Wash hands before and after every client and after any interruption. A clean neck strip keeps the cape off skin, and capes are changed or turned inside out between clients. Linens move from closed storage to the hamper and never back to the shelf.
Safety side
Know where SDS sheets live, keep cords out of walkways and away from water, use grounded outlets, and remember that a client with an inflamed, infected, or parasitic condition is referred out, not served.
Rule of thumb: if you cannot immerse it, disinfect it, or throw it away, it does not touch a client.