A security guard is assigned to an area where chemical products are stored. What is the most critical piece of Personal Protective Equipment (PPE) to be aware of and potentially have access to, based on the WHMIS symbols, if a spill were to occur?

1. Standard latex gloves, safety glasses, and a disposable face mask.
2. Specific chemical-resistant gloves, eye protection (goggles), and potentially a respirator, as indicated on the SDS.
3. A full-body hazmat suit, independent breathing apparatus, and spill containment booms.
4. A hard hat, steel-toed boots, and a reflective vest.