Halswell Timber – Case Study Halswell Timber in Christchurch recently turned to Egmont Air for their industry experience when needing to upgrade their dust extraction system. Egmont Air designed and installed a unique combination of three modular extraction systems that are interconnected. This gives Halswell Timber the ability and diversity to be able to process treated and untreated products by separating the wood dust & shavings through filters and fans into separate containers. …