CTA is a subsidiary company of Anderl Group, based in TRONDHEIM city of Norway. For over 20 years CTA has been a world leader in the development and provision of air purification for road tunnel s. Since 1989, CTA has done more than 20 air purification stations in more than 10 tunnels...
CTA is working on the development of electrostatic filters for new areas of application in cooperation with other system suppliers. The company has projects in these areas in regards to gas cleaning in Spain and for filters for allergic or asthmatic people in Austria. In addition, CTA also cooperates with universities to evaluate improvements, and develop part of our R&D...
CTA has a lot of experience in tunnel application. CTA has specialized APS design, including bypass, ceiling bypass, shaft, and ceiling mounted, to fit with different type of tunnel, after considering tunnel construction type, purpose of APS, space limitation etc.