When working with aluminum sheets, there are a few safety concerns to consider. First, aluminum dust can be a respiratory hazard, so it's important to use proper ventilation and personal protective equipment like masks. Second, sharp edges can cause cuts; always handle aluminum sheets with gloves and proper tools. Additionally, aluminum is a good conductor of electricity, so avoid contact with live electrical wires. Lastly, when cutting or shaping aluminum, eye protection is crucial due to the risk of flying debris. Always follow safety guidelines specific to your workplace and the tools you are using.