Ventilation branch details in AutoCAD, dwg file.

This Architectural Drawing is AutoCAD 2d drawing of Ventilation branch details in AutoCAD, dwg file. Exhaust ventilation systems work by depressurizing your home. The system exhausts air from the house while make-up air infiltrates through leaks in the building shell and through intentional, passive vents. Exhaust ventilation systems are most appropriate for cold climates.