NOx is not laughing gas, nor a food additive: "NOx should not be confused with nitrous oxide (N2O), which is a greenhouse gas and has many uses as an oxidizer,

NOx is not laughing gas, nor a food additive: "NOx should not be confused with nitrous oxide (N2O), which is a greenhouse gas and has many uses as an oxidizer, an anesthetic, and a food additive." -- https://en.wikipedia.org/wiki/NOx https://en.wikipedia.org/wiki/NOx