In the store today, you
can find dishwashers with a range of operating sound levels ranging roughly
from 39 decibels (dBA) to 63 dBA. I consider any dishwasher with an operating sound
level less than 46 dBA to be very quiet. Because some of these dishwashers are
so quiet, many manufacturers have implemented lights or displays to show you
that, yes, your dishwasher is operating.
Here are some examples of
decibel ratings for some common sounds to give you a comparison:
Rustling grass and leaves: 20 dBA
Whisper in library: 30 -40 dBA
Average fridge: 30 – 45 dBA
Normal conversation: 50
– 65 dBA