Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to work safely with chemicals [title] Wear splash goggles. [step] Splash goggles cover your eyes entirely. Other eyewear, including prescription glasses and contacts, will not provide adequate protection.

Ending1: You may want to invest in goggles after wiping down an area where splash mop duty is performed with a concentration of 6.0% (91 ml) of compound. [title] Stand adequately upright with your feet roughly shoulder width apart. Ending2: In some cases, additional eye protection will also be required. [substeps] When there is a high likelihood of heavy splashing or implosions, additional protective wear might be necessary for your face. Ending3: They also will trap chemicals the body's immune system prevents, such as ammonia. Wear an eye mask to protect your eyes and mouth while you work. Ending4: [substeps] Helmets are the shorter form of goggles. They are time-honored, natural protection against chemicals and, as such, water.

Answer format: ending1/ending2/ending3/ending4