CONFINED SPACES A confined space has limited means for entry/exit and can include a space that has an open top The atmosphere inside a confined space can be very different from the outside atmosphere Deadly gases may be trapped inside the space The space may lack enough oxygen to support life The space may trap excess oxygen to promote an explosion if an ignition source is introduced Never trust your senses to determine if a space is safe Always check with your supervisor before entering any space Never enter a confined space to help a downed worker...