The CFH Group brings together subsidiaries and associated companies that are globally active in the air technology sector.
The production, transport and purification of air and compliance with regulatory limits for respirable dust, temperature, etc., are major challenges for workplace environments in the tunnelling and mining sectors.  
CFH provides you with state-of-the-art ventilation technology. Our products offer effective solutions in the core areas of dedusting, ventilation and the heating and cooling of air. We also offer ancillary products such as ducting and gas purification. 
Each CFH Group company provides individual specific engineering solutions within the wider scope of the realization of more complex overall plants.
CFH operates direct subsidiaries and joint ventures in Germany, Kazakhstan, Russia, Poland, France, Australia and China to ensure an international presence. 
Since 1999, CFT GmbH Compact Filter Technic has specialized in the design and development of compact dedusting systems with highest cleaning efficiencies for mining and tunnelling applications. 
Korfmann Lufttechnik GmbH has specialized in ventilation for mining, tunnelling, excavation of underground structures and other industries since 2001. More than 2,000 fans have been successfully implemented for mining projects, including main mine fans with impeller diameters up to 3.35 m. 
WAT Wärme-Austausch-Technik GmbH has been providing complex cooling systems as part of both surface and underground air conditioning for mines and tunnels for more than 40 years. 
DFT GmbH Deichmann Filtertechnik has been developing filter systems for dust and gaseous substances in industrial applications for more than 70 years - whether for high temperature ranges, difficult installation conditions or explosive dusts.