What is the purpose of a pressure relief air nozzle?

• A. Improves finish quality
• B. Prevents bodily injury
• C. Reduces noise
• D. Increases air flow

Answer: (B)

Safety with compressed air is the focus here. A pressure relief air nozzle is designed to vent excess air pressure in a line so energy stored in the system doesn’t unleash as a dangerous jet. In a workshop, a sudden burst from a high-pressure line or a blocked nozzle can cause serious injuries to skin, eyes, or nearby people, and can also stress hoses and fittings. By giving a controlled path for that excess pressure to escape, the device reduces the risk of harmful bursts and unexpected releases, keeping people safer and protecting equipment.

This function is why the best answer is that its purpose is to prevent bodily injury. It isn’t primarily about improving finish quality, reducing noise, or increasing air flow, which are governed by other design features and tools.