Hootim takes the ductless ventilation system as core of its ventilation solutions. Itsproducts cover all scenarios in the ventilation industry. With the business philosophyof "helping customers solve problems and creating value for customers", Hootim builds up systematic solutions for multiple needs of ventilation systems. It has now become a leading professional, comprehensive, one-stop overall solution provider for improving human-habitation environment in the industry.

Hootim (Tangshan) Environmental Technology Co. Ltd （Referred as Hootim）, which is honored as a national high - tech enterprise and "specialized, high-end andinnovation-driven" enterprise, focusing on ventilation industry for more than ten years, is theoriginal inventor of the ductless ventilation system in China, and the standards setterof China's ventilation industry. Hootim has achieved hundreds of core technological patents and has built up a large R&D and manufactory center, covering an area of20,395 square meters, with manufactory plants and a technological R&D center.

Hootim‘s concept is striving for excellence. It is strictly followed during the process of manufactory and leads to successively pass of ISO9001 quality management system, ISO14001 environmental management system and CCC compulsory product certification judgements. Laboratory in the R & D center is equipped with professional testing and experimental instruments, such as constant temperature and humidity chambers,high-temperature ovens, wire swaying machines,3D printers, wind tunnels and 30m³ test chambers.Furthermore, a strict quality control system is

applied to the whole process from raw material procurement to manufactory process inspection,to ensure that products delivered to customers are solid, stable and reliable.