Which of the following promotes safe chemical handling in a salon environment?

Using personal protective equipment (PPE) is essential for promoting safe chemical handling in a salon environment. PPE, such as gloves, goggles, and masks, serves as a barrier to protect the skin, eyes, and respiratory system from exposure to potentially hazardous chemicals found in beauty products. Proper use of PPE significantly reduces the risk of chemical burns, allergic reactions, and other injuries, ensuring a safer working environment for both cosmetologists and clients.

It's important to understand that certain practices, such as mixing products without instructions, can lead to dangerous chemical reactions and are unsafe. Similarly, working in poorly ventilated areas increases the risk of inhalation of toxic fumes, which can negatively impact health. Finally, while labeling all containers with hazardous materials is crucial for safety, it does not actively protect individuals handling those chemicals like PPE does. Therefore, the use of personal protective equipment stands out as the most direct method of ensuring safety when dealing with chemicals in a salon setting.