CSLB C-33 Painting & DecoratingSafetyEasy
A painting contractor is preparing to spray an oil-based primer in a poorly ventilated interior room. Which type of respirator is most appropriate to protect workers from organic vapors?
- AN95 particulate respirator
- BDust mask
- CHalf-mask respirator with organic vapor cartridges
- DSurgical mask
Show answer & explanationAnswer & explanation
Correct answer: C. Half-mask respirator with organic vapor cartridges
Oil-based primers release organic vapors that N95 particulate respirators, surgical masks, and dust masks cannot filter. A half-mask respirator equipped with organic vapor cartridges is specifically designed to protect against such chemical fumes.
Why the other options are wrong
- A. N95 respirators protect against particulates, not organic vapors.
- B. Dust masks are designed for nuisance dust and provide no protection against organic vapors.
- D. Surgical masks offer minimal protection against airborne particulates and no protection against chemical vapors.
Organic Vapor Respirators
Respirators fitted with specialized cartridges designed to absorb or filter out harmful organic chemical vapors from the air.
- Used for protection against solvents, paints, and certain pesticides.
- Cartridges have a limited lifespan and must be replaced.
- Requires a proper fit test to ensure effectiveness.
Memory trick: Each breath needs the right mask to last.