A rodent anesthesia breathing circuit is a system that delivers anesthetic gases to a small rodent during surgical procedures.

The anesthetic gas is delivered to the animal through the circuit tubing, allowing the animal to breathe in the anesthetic and maintain unconsciousness throughout the procedure. The rebreathing bag captures exhaled gases and recycles them back into the circuit, helping to conserve the anesthetic gas. The reservoir bag acts as a backup supply of oxygen, while the gas scavenging system captures and removes waste anesthetic gases from the environment.