Abstract: An attachment device for fastening a ventilator mask on the head of a wearer includes a system of straps with at least two strap ends with a fastening device for fastening the straps to the ventilator mask. The straps are joined with a central section, so that at least two strap ends extend away from the central section towards the ventilator mask. The central section rests on the head of the wearer and is at least partially adapted to the shape of the wearer's head. In addition, a method for producing the attachment device includes subjecting the central section to a performing step to adapt it to the shape of the wearer's head.