Participated in the Big 5 Global Expo in Dubai

Participated in the HVAC KOREA Expo in Republic of Korea

Participated in the ISH Expo in Frankfurt

Participated in the AHR Expo in Atlanta

Developed PCE-PEX

Office expansion and renovation

Direct production certification confirmation of filter (Medium, HEPA)

Selection of Small and Medium-sized Enterprises for Human Resources Development

Selected as Next-generation world-class product

Establish a filter production line

Relocated the headquarter (Gimpo Yangchon Industrial Complex)

Participated in the CRH, ISH Expo in China

Recognized as a performance-sharing company

Participated in the U.S. Heating & Air Conditioning Expo (Atlanta)

Began (direct) exportation

Participated in the CRH, ISH Expo in China

Developed PDH-600 & PDH-1000

Designated as a promising export SME

Entered into the Japanese market

Developed new ER-paper

Established a corporate affiliated research institute

Developed PCH-PHX

Registered as a venture business

Constructed mass production