Final answer:
The types of Breathing Apparatus (BA) include Compressed Airline BA, Douglas Bag Method, and Scuba Diving BA.
Step-by-step explanation:
The types of Breathing Apparatus (BA) include:
- Compressed Airline BA: This type of BA is connected to a remote air supply through a hose or pipe. It allows the user to have a continuous supply of breathing air while working in hazardous environments. This type of BA is commonly used in industrial settings and firefighting.
- Douglas Bag Method: This method is used to measure oxygen consumption and carbon dioxide production. The subject breathes through a mouthpiece, and the expired air is collected in a bag for analysis. This method is often used in exercise physiology research.
- Scuba Diving BA: Scuba divers use compressed air tanks to breathe underwater. The air in the tanks is at a higher pressure than the surrounding water, allowing the diver to take in air through a regulator.