A system for cooling computing devices may include at least one facility, at least one cool air aisle disposed within the at least one facility, at least one hot air aisle, at least one air inlet, and at least one exhaust outlet. The system may also include a plurality of computing devices including a plurality of computing device fans arranged within the at least one cool air aisle. An internal air pressure within the at least one cool air aisle provided via the plurality of computing device fans may be lower than an external air pressure of the external environment. The plurality of computing device fans may be configured to provide sufficient airflow of outside air through the at least one facility to cool the plurality of computing devices.