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Oxygen use heightens the risk of fire, so safety centers on preventing ignition sources and keeping the environment controlled. Making sure that all electrical equipment is in good repair is the strongest safety measure because faulty cords, damaged plugs, or overheating devices can produce sparks or heat that may ignite oxygen-rich air in the room. When equipment is well maintained, the chance of an ignition source near the patient decreases significantly, which directly protects the patient and staff.

Other practices are important but less protective as a sole guideline. For example, avoiding matches or smoking around oxygen is crucial, but the statement here emphasizes equipment safety as the most comprehensive preventive step. Tying tubing in knots can obstruct oxygen flow and create hazards, and removing the cannula without a nurse’s instruction risks under-oxygenation. Keeping electrical equipment in good repair addresses a broad range of potential ignition sources and is the most reliable single guideline for safe oxygen use.