Post No Smoking signs in the room where your oxygen is kept. Post a Oxygen in Use sign on the front door to let visitors and emergency workers (like fire department) know that oxygen is in use at home. Check that all electrical equipment in the area near the oxygen is properly grounded. Secure loose cords and extra tubing so you dont trip on them when using your oxygen system. Secure floor mats and rugs so that you will not trip or fall when using your oxygen system. Never use extension cords with any medical equipment. Be sure doorways, hallways and rooms can accommodate you if you have a portable oxygen system.