Keep contol over your working environment. Use a "asbestos dust hazard cancer and lung disease hazard authorized personnel only" sign. There is a reason signs are so popular.
• Signs are the lynchpin of comliance with state and federal laws.
• Keep safety first - a sign is a constant reminder that will always get noticed.
• A sign makes it clear that you care about safety, and the health and well-being of those working in your plant.