Under which circumstances should grease or oil contact the N2O gas delivery system?

The safest practice regarding grease or oil contact with the nitrous oxide (N2O) gas delivery system is that such contact should never occur. This is predominantly due to the properties of nitrous oxide, which is an oxidizing agent, meaning it can promote combustion. When grease or oil is introduced into the system, the potential for ignition and subsequent fire hazard significantly increases. This is particularly crucial in a medical or dental setting where safety is paramount, and the risk of fire should be minimized to protect both patients and healthcare providers.

The importance of this guideline is underscored by the fact that many gases, especially those used in medical environments, require high standards of cleanliness and safety in their delivery systems. Ensuring that no greases or oils come into contact with N2O is part of adhering to these standards and ensuring the safe operation of equipment designed for its use.