What is the quietest sone rating?

Related questions

1. How many CFM do you need per BTU?
2. How do you calculate engine CFM?
3. How do I know what CFM my carburetor is?
4. How many CFM is a 4 ton unit?
5. How do you calculate return on CFM?
6. How many CFM do I need for a 12x12 room?
7. How many CFM is a 2 ton unit?
8. What does a better carburetor do?
9. Are 1.5 sones loud?
10. How many CFM is a 3 ton?

Tags

1. #sones
2. #measuring
3. #equivalent
4. #called
5. #rating
6. #amount
7. #bathroom
8. #standard
9. #quieter
10. #about
11. #makes
12. #industry
13. #sound
14. #lower
15. #rated
16. #refrigerator
17. #quiet