Breathing system

Breathing system may refer to:

• Respiratory system, the biological system in the bodies of animals
• Artificial respiration, several systems to breathe artificially
  • Cardio-pulmonary resuscitation, a technique/system to maintain breathing when autonomic breathing fails
  • Ventilator
  • Breathing circuit, a medical device, to breathe and introduce anesthesia
• Breathing apparatus, equipment systems used to breathe in hostile environments