The factory manager has observed workers using the compressed air blow guns unsafely. They therefore want to do a $10-$minute safety briefing.

$($b$)$ What would you advise the factory manager to include in this safety briefing?

Note: Your answer should be based on the scenario only.

$($c$)$ Other than the safety briefing, what control measures could the factory manager implement to help ensure that the compressed air blow guns are used safely.

Note: You should support your answer, where applicable, using relevant information from the scenario.