Which of the following items are considered safety devices that should be available in labs?

• A. Fire extinguisher
• B. First aid kit
• C. Phone with emergency access to 911
• D. All of these are safety devices

Answer: (D)

Having a range of safety devices in a lab ensures quick response to different emergencies. A fire extinguisher is essential for controlling small fires before they spread, providing a first line of defense against flame hazards common with electrical equipment and solvents. A first aid kit is crucial for addressing minor injuries and stabilizing someone until further help arrives. A phone with emergency access to a number like 911 ensures rapid contact with professional responders when needed. Because each item addresses a distinct risk and together they cover fire safety, medical readiness, and emergency communication, the best choice is that all of these are safety devices. In practice, labs also include other safety tools like eyewash stations, safety showers, spill kits, and personal protective equipment to build a comprehensive safety plan.