The National Marker Company tag with the legend “BE SAFE! ALWAYS SECURE CYLINDERS - EMPTY/IN SERVICE/FULL” is often seen in warehouses, industrial or manufacturing facilities, and hospitals. It clearly informs the employees about the cylinder storage area and asks them to always secure the cylinders. It also gives the option to mark if the cylinders are in service, full or empty. The be safe tag uses contrasting colors to ensure clear visibility from a distance and in most lighting conditions. Using safety tags that carry important warnings or status updates are a part of common safety measures in many places.