Zacon Limited is a Mine Automation and Safety Company. We designed the Original Stench System and have continuously evolved its technologies to keep Underground workers safe. All our systems are custom to each application, because there is not exact application. We are also the master Distributer for Stench gas and we are a very large part of its creation. We also have our Balanced Ventilation Doors BVD and LTBVD that we designed and created. These doors are Reliable extremely low maintenance and Safe. Low installation cost and low long term cost. We also offer our Balance Personnel Doors, a man door that you can actually walk through and walk stretcher through with ease. Zacon Limited prides itself on Safety, quality and reliability. We are always here to help with your Stench Gas and Ventilation Door needs.