When working with aluminum, it's important to follow several safety precautions. Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a dust mask to protect against aluminum dust. Ensure proper ventilation to avoid inhaling aluminum dust or fumes. Use spark-resistant tools when cutting or welding aluminum to minimize the risk of fire. Keep a fire extinguisher nearby and be aware of the flammability of aluminum. Store aluminum in a dry, cool place to prevent it from reacting with moisture. Lastly, be cautious when handling aluminum alloys, as some can be more reactive or hazardous than pure aluminum.