WGI & WGO

Wall mounted outdoor inlets and outlets for fresh / exhaust air

Patented product
Fresh air without mixing fresh air with exhaust air
Doesn't freeze in cold climate
Keeps pressure in balance
The most economical method for building extract and supply ducts in multi-apartment buildings
No need for vertical ducting, which enables more building area for living
No fire blocks needed when the complete ventilation system is inside the apartment.
Minimum pressure loss with 5m/s extract velocity