DOOYEON TECH IAQC system and equipments are contributing to pursue for happiness of city residents through sterilization, deodorization and purification of polluted indoor air.DOOYEON TECH already supplied the facilities & the monitoring systems for clean room and walk-in chamber to Korea's most popular companies like Samsung Electronics and LG Electronics.It was the first step for DOOYEON TECH to take for indoor environment solution.DOOYEON TECH already supplied the facilities & the monitoring systems for clean room and walk-in chamber to Korea's most popular companies like Samsung Electronics and LG Electronics.It was the first step for DOOYEON TECH to take for indoor environment solution.Based on the request of DOOYEON TECH customers to eliminate hazardous and disturbing materials in the air tight spaces, DOOYEON TECH developed IAQC (Indoor Air Quality Control) system and equipments using Ion Cluster technique for the first time in Korea and the 3rd time in the world. phytoncide spray is you can feel as if your are in a prestine forest anywhere, anytime!Relax gel is water-soluble gel allows quick absorption and refreshing application with the ice technique.