Artificial respiration system and method having automatic mask detection

A ventilator system, comprising:

• a set of two or more ventilator masks, wherein each of at least two of the ventilator masks is configured in a size that will fit upon a different range of sizes of human faces than at least one other ventilator mask in the set of two or more ventilator masks, wherein each of the at least two ventilator masks comprises a gas flow restrictor that is different from a gas flow restrictor of the other ventilator masks of the at least two ventilator masks;
• and
• a ventilator supply system, comprising:
• an air/oxygen source;
• a connector configured to couple with each of the at least two ventilator masks;
• an air/oxygen supply system comprising a detection system capable of determining a pressure created by the application of air/oxygen to a mask coupled to the ventilator supply system;
• a proportional valve coupled to the detection system and the air/oxygen source, wherein the proportional valve controls the flow rate of air/oxygen from the air/oxygen source to the detection system;
• and
• a controller coupled to the detection system, wherein the controller determines, during use, which mask, among the two or more ventilator masks, is coupled to the air/oxygen supply system based on the pressure detected by the detection system.