Normal Hearing:
- can hear soft conversations

Minimal loss:
- 16 to 25 decibel loss
- will have trouble hearing faint or distant speech

Mild:
- 26 to 40 decibel loss 
- will miss up to 50% of a group discussion

Moderate:
- 41 to 55 decibel loss
- conversation over 5 feet away may not be understood

Moderate to severe:
- 56 to 70 decibel loss
- will miss 100% of speech information without amplification

Severe:
- 71 to 90 decibel loss
- can only hear loud noises at close distances

Profound:
- 91 decibel loss and above
- depends solely on vision instead of hearing for processing information