Physics of capnography

Physical Methods of Carbon dioxide Measurement

1. Atmospheric Pressure
2. Nitrous Oxide
3. Oxygen
4. Water Vapor
5. Inhalational Agents
6. Response Time

Chemical Method of Carbon dioxide Measurement

Types of Capnographs

1. Main-stream Capnographs
2. Side-stream Capnographs

Recent advances in technology

1. Microstream technology for side-stream sensors
2. Main-stream sensors