what is the flow rate of all kinds of gases that should be receiving to the patient ?

A gas flow rate is the amount of gas that travels through a specific spot in a specific amount of time.  Process engineering and chemical engineering both heavily rely on calculations of gas flow rates. Because pipes' diameters can change along their length, calculating flow rates across pipes can be difficult. For any type of gas, the same fundamental calculations can be used.

Depending on the type of gas used and the demands of the patient, the flow rate of medicinal gases varies. Medical gases are employed in a variety of patient care settings, including the maintenance of life, the operation of anesthetic machines and ventilators, and the creation of surgical instruments. Medical oxygen, nitrous oxide, medical air, carbon dioxide, nitrogen, and medical vacuum are the most often utilized medical gases in hospitals.