Compact electronic devices, such as Access Points (APs), having airflow and cooling features are provided. According to one implementation, a compact electronic device includes an outer plastic housing and an inner casing arranged inside the outer plastic housing. The inner casing has a high-voltage section configured to support one or more high-voltage electrical components and a low-voltage section configured to support one or more low-voltage electrical components. The compact electronic device further includes a single fan that is configured to draw air from outside the outer plastic housing, move the air through the high-voltage and low-voltage sections, and exhaust the air through one or more exhaust vents in the outer plastic housing. Also, the inner casing is configured to isolate the one or more high-voltage electrical components from metal portions of the low-voltage section by at least a certain separation to meet clearance and creepage safety standards.