A worker who was working alone at night entered a walk-in freezer. When the door closed the worker was unable to get out. Two other cases are briefly reviewed. Emergency release mechanisms can freeze up and should be routinely checked.

A minimum order of 5 posters is required for laminated posters. If you order 4 or fewer laminated posters, you will still be charged the minimum price of $75 ($15 X 5 posters). No minimum is required for purchases of electronic packages.