The coaxial Bain System for anesthesia. With a partial reinhalation circuit without a lime absorber, contains: a coaxial system with an entrance for gases located near the person who is ill and an exit for gases located near the respiratory bag and controlled for the escape tube, length 1.70 to 1.85 m including the neck, mask and 3 liter bag.

It is one of the auxiliary products in the application of general anesthesia.