Nitrous oxide cylinders are metal containers designed to hold compressed nitrous oxide gas, which are identified by a specific color-coding system, with nitrous oxide cylinders typically marked in blue in the United States.
Dentists and medical professionals use it to sedate patients having minor medical procedures, and it’s also sometimes used to treat people withdrawing from alcohol dependence. It is also used as a food additive for whipped cream, and to enhance engine performance in the automotive industry