My DF6164-M hob hood is very noisy, far above the 66db as advertised.

My DF6164-M hob hood is very noisy, far above the 66db as advertised. https://mans.io/question/view/13474-my-df6164-m-hob-hood-is-very-noisy-far-above-the-66db-as-advertised-aeg-df-6164-_-m-hood-mp4-is-there-any-way-to-redu