The Bush Company Clamshell Rooftop Tents are already well ventilated with large opening doors and high-quality midge mesh| but if you are looking for some extra airflow for those really hot nights| the Sirocco 12V Fan bracket is a perfect choice. The bracket can be easily attached to one of the internal cross beams inside the roof of either the AX27 or Classic Clamshell Rooftop tents| the fan can then be easily slid into place when required and removed when the tent is to be closed ( note: fan not included ) leaving the bracket in place.