2.3.2. Single-Use vs. Multi-Use Items — Rules and Disposal
💡 First Principle: The fundamental rule for single-use items is simple and absolute: used once, discarded. There is no cleaning or disinfecting process that makes a single-use item safe for reuse. The item's material — typically porous or soft — is either impossible to disinfect or structurally degraded by disinfection.
This is one of the most directly tested distinctions on the exam. Know which category each common item falls into.
Single-use items (use once, discard):
- Cotton pads, cotton balls, gauze
- Lancets, extraction tips, microneedling needles
- Wax applicator sticks (if they touched the client or were dipped back — "double-dipped")
- Disposable gloves
- Tissue and paper towels used on clients
- Wooden spatulas used for applying products
- Eye pads
- Lip balm applicators
Multi-use items (clean + disinfect between clients):
- Metal tweezers, scissors, comedone extractors
- Reusable metal spatulas
- Non-porous bowls, dishes
- Magnifying lamp handles and equipment surfaces
- Reusable ceramic or stainless mask bowls
The porous vs. non-porous rule: Porous items (wood, fabric, natural bristle) cannot be adequately disinfected because the disinfectant cannot reach pathogens embedded in the material's structure. Any porous item that contacts a client is single-use. Non-porous items (metal, glass, certain plastics) can be disinfected.
⚠️ Exam Trap: Natural-bristle makeup brushes and wooden handles are porous — they are single-use. Synthetic brushes with non-porous handles can be cleaned and sanitized. This distinction appears in both the infection control and makeup application domains.
Disposal of single-use items: Contaminated single-use items go into a designated waste container (not the regular trash bin used for non-contaminated waste). Items contaminated with blood or body fluids must be handled as biohazard waste.
Reflection Question: An esthetician uses a wooden spatula to apply product, then sets it aside and picks it up again to apply more product to the same client. Is this acceptable? What if she uses it for the next client?
