The phenomenon in which ions are released into the air at the cusp that is applied with a high voltage of 3000V or more
The reduction range is wider than the fine dust reduction range of the HEPA filter, and the maintenance cost is greatly reduced
Fine dust collection facility in the underground tunnel ventilation shaft - 2 related patents registered
Result: Daejeon Guam Station Demonstration Project (Execution Completed – Judged to be successful) and Seoul Sangsu Station Demonstration Project
Sterilizing and deodorizing device – 1 related patent registered
Result: Eumseong National Agricultural Cooperative Federation Branch
Subway Underground Station – Two-way Dust Collector
Mobile Platform Trolley – Daejeon Transportation Corporation
Multi-Use Facility – Under Development