Cleaning, sanitizing, and disinfecting describe three different actions performed by three different chemistries with three different outcomes. Confusing them costs facilities in two ways: over-spending on hospital-grade disinfectants where soap-and-water would do, or under-protecting patients in spaces that need verifiable kill rates.
The three levels
- Cleaning removes visible soil and reduces germs by physical action. It's a prerequisite — you cannot disinfect a dirty surface.
- Sanitizing reduces bacteria on a surface to a level considered safe by public health standards (usually a 99.9% reduction).
- Disinfecting uses an EPA-registered chemical to destroy a much broader range of pathogens, including viruses, at a 99.999% kill rate when used at the right concentration and dwell time.
When you need disinfecting (not sanitizing)
- Operatories, exam rooms, and treatment chairs in dental and medical practices.
- Surfaces exposed to blood, OPIM, or bodily fluids — OSHA bloodborne pathogen standard.
- Any high-touch surface during an active outbreak (flu, norovirus, COVID).
When sanitizing is enough
- Breakrooms and food-contact surfaces in offices.
- Conference room tables, common-area door handles in low-risk professional offices.
The dwell time problem
The most common mistake is wiping a disinfectant on and immediately wiping it off. Every EPA-registered product has a contact time — typically 1–10 minutes — during which the surface must remain visibly wet. If it dries early, you have to re-apply. Our crews are trained to use products whose dwell times match the room's turnover cadence.
If you'd like a written scope of work that specifies which chemistry is used in which room — and why — request a facility audit.