A natural ventilation system designed to remove trapped heat from rooms.

• Japanese NSK axial bearing sealed, self lubricating.

• 32 pieces dual-arc vanes made from fluorine carbon coating aluminium alloy/stainless steel to keep rain from flowing backwards

• Fireproffing reinforced nylon plastic support with high strength high tenacity and easy recovery from deformation.

• 0.7mm Korea puxiang 304/2B stainless steel plate as medium circle.

1 Aluminum Alloy Ventilator

2 Stainless Steel Ventilator