California Cosmetology Written ExamSafety and Infection ControlMedium
A salon stores several cans of aerosol hairspray on a shelf directly above a baseboard heater. What is the primary safety hazard created by this storage practice?
- AThe heat will cause the hairspray to lose its fragrance over time
- BThe pressurized flammable propellant inside the cans can ignite or explode when exposed to heat
- CThe aerosol cans will freeze solid and become unusable
- DThe propellant gas will neutralize and stop the heater from functioning
Show answer & explanationAnswer & explanation
Correct answer: B. The pressurized flammable propellant inside the cans can ignite or explode when exposed to heat
Aerosol products contain pressurized, often flammable propellants. Storing them near a heat source can cause the can to overheat, rupture, or explode, creating a serious fire hazard. California fire safety rules require flammable products be stored away from heat/ignition sources.
Why the other options are wrong
- A. Fragrance loss is a minor quality issue, not the primary safety concern.
- C. Heat would not freeze the cans; this is the opposite effect.
- D. Aerosol propellant has no effect on the heater's operation.
Aerosol/Flammable Product Storage
Aerosol cans contain pressurized flammable propellants and must be stored away from heat sources, open flames, and direct sunlight to prevent fire or explosion.
- Never store near heaters, outlets, or direct sun
- Pressure buildup from heat can rupture cans
- Applies to hairsprays, some nail products, disinfectant sprays
Memory trick: Aerosol + heat = tiny bomb waiting to pop.