Size of job:
Canteen which sounds like an echo chamber is not where you are likely to want to go.
When you want to take a break from your desk you want to do so in relaxing environment which will revive your energies.
While it is all to often the situation the Zurich Restaurant is the exception.
The application of SonaSpray to the ceiling soffit simply absorbed all of the noise and created a comfortable, restful oasis for that well deserved break. Back to work with a clear head.