It is a special CO2 Circle Absorber used for animal anesthesia machine

 

Technology Specification:

Mode: closed, half closed& half open, and open mode

The inspiration valve and expiration valve, they are invisible

APL Valve(0-60cmH2O)

Airway pressure gauge(-20cmH2O-100cmH2O)

Soda lime chamber: 2L

Airbag port and C.G.O. input port