We successfully researched and developed the first desiccant rotor which had never happened before in China, and thus beginning to provide high-performance dehumidification equipment for the major industries in China.

We successfully developed and manufactured the first low dew point dehumidifier.

Zhejiang Paper Research Institute had made business adjustments and intended to separate the related industries of air treatment. The founding team of the company, as the core personnel of the original air treatment industry, established Hangzhou Dryair Treatment Equipment Co., Ltd., after coming out of the original company.

ZCH series was named as Zhejiang high-tech products.

Our company was named as high-tech enterprise of Zhejiang province.

Air treatment equipment for amphibious armored vehicle is produced.

Cryogenic recovery technology was successfully applied to Dry Air VOC treatment unit.

Our company was awarded as a national high-tech enterprise .

Subsidiary Hangzhou Jieer Environmental Engineering Co., Ltd. was established.

Cryogenic recovery+zeolite rotor technology was successfully applied to Dry Air VOC treatment unit.

Our company became the R&D center of Hangzhou city.

Low temperature regenerative rotor dehumidification technology successfully applied to Dry Air rotary dehumidifiers

Developed high temperature air inlet rotary dehumidification unit

VOC high air volume and low concentration recovery system was listed as a major project in Zhejiang Province.

Developed medium temperature regenerative low dew point dehumidification unit.

The medium temperature regeneration low dew point dehumidifier unit was successfully applied to the Tesla super factory in Nevada, USA.

Successfully developed single rotor low dew point dehumidification unit.

"Hangzhou Dry Air Treatment Equipment Co., LTD" was renamed as "Hangzhou Dry Air Intelligent Equipment Co., LTD".