Atag WO61 BM Serie Mode D'emploi Et Instructions D'installation page 64

your extractor hood
introduction
You have selected an under-mounting ATAG extractor hood.
Optimum ease of use and simple operation were the most
important factors in the development of this product.
The extractor hood operates silently and provides maximum
extraction effect. This banishes cooking smells completely.
The extractor hood can be adapted for recirculation.
GB 2