How does an oxygen mask work?

Related questions

1. What should you not do while on oxygen?
2. Does insurance pay for oxygen?
3. Who invented the oxygen mask?
4. What oxygen mask gives the most oxygen?
5. How many Litres is a simple face mask?
6. What is the difference between non rebreather mask and partial rebreather mask?
7. Are oxygen tanks dangerous?
8. What diagnosis qualifies for home oxygen?
9. How much does oxygen facial cost?
10. What are the side effects of being on oxygen?

Tags

1. #cover
2. #lungs
3. #entire
4. #transfer
5. #provides
6. #masks
7. #mouth
8. #oxygen
9. #nasal
10. #storage
11. #method
12. #breathing