Final answer:
The most important piece of safety gear for a worker handling toxic liquids is a mask.
Step-by-step explanation:
The most important piece of safety gear for a worker who handles toxic liquids is a mask. A mask is essential for protecting the worker from inhaling any toxic fumes. It helps filter out harmful particles and prevents them from entering the respiratory system, ensuring the worker's safety.
Learn more about importance of wearing a mask for workers handling toxic liquids