What is a Venturi mask used for?

Related questions

1. Does insurance pay for oxygen?
2. Do oxygen tanks use a lot of electricity?
3. Is Oxygen good for the skin?
4. How do you shower with oxygen?
5. Does human skin absorb oxygen?
6. Can Oxygen Tanks Explode?
7. Are oxygen tanks dangerous?
8. What are the side effects of being on oxygen?
9. How many Litres is a simple face mask?
10. What is oxygen facial benefits?

Tags

1. #masks
2. #delivered
3. #total
4. #bernoulli
5. #oxygen
6. #principle
7. #entrain
8. #large
9. #small
10. #resulting
11. #venturi
12. #orifice
13. #through
14. #predictable