1995

Invented the first Electrostatic Precipitator and had it internationally patented

1998

Entered mainland China and was the first to introduce commercial electrostatic air purification technology into China

2000

Efficient ESP - SA series was launched

2005

ESP for low-altitude emission - TITAN series was launched

2008

Photo-oxidative degradation of peculiar fume smell - BARTONUV-C was launched

2011.03

Airsolution Air Cleaning System (Shanghai) Co., Ltd. was established

2014

R&D of DIRK Hoods was started

2014.09

Jiaxing Supar EnvironmentProtection Equipment Co., Ltd. built factory itself (in Dayun Industry Park, Jiashan County) which, covering an area of 12.15 mu (0.81 ha), floor area being 10,360 sqm, was put into use

2017.01

Dirk Environment (Zhejiang) Co., Ltd. was founded

2018.10

Dirk Environment (Zhejiang) Co., Ltd. was founded

2020.01

New factory (in Weitang Industry Park, Jiashan), covering an area of 23.68 mu (1.58 ha), floor area being 26,875 sqm, was put into use

2021

ATT was put back on the market

2022

2023