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2.
Drill two additional Ø 8 mm holes for the dowels and screws by which the
extractor hood can be fixed after hanging up (s. fig. below).
3.
Lift up the extractor hood and hang it on the wall bracket (s. fig. below). Fix the
extractor hood by tightening the screws properly.
4.
Attach the non-return valve to the air outlet of the extractor hood.