The model number is normally found inside the cooker hood or on the side of the cooker hood casing.
Baumatic Cooker Hood Extractor PCB Board BT6.3BGL BT6.3GL
Baumatic Cooker Hood Control Switch PCB Assembly BT7.1GL 36353
BAUMATIC Cooker Hood Control Switch PCB Assembly BT10.1GL GHD60BK 082637283
Baumatic Cooker Hood Extractor PCB Board BT7.3BGL BT7.3GL
Baumatic Cooker Hood Extractor PCB Board ISL5SS ISL5SS-EU
Baumatic Cooker Hood Fan Control Switch PCB BT10.1GL, BT6.1GL, TON6SS 082637283