Take A Deep Breath.

AirQuality Technology

Take A Deep Breath.

Founded in 2011, AirQuality Technology (AQT) is now a leading air clean technology innovator and manufacturer originated in Spain and currently headquartered in China. The company ranks as one of the top 10 air filtration brands in China and was named a Top APAC Cleantech Company in 2019 and 2020. AQT values gratitude, excellence, and innovation, and continually works to provide healthy air for clients around the world. Designed to be environmentally friendly, AQT’s products are used in an array of markets including residential buildings, office buildings, hotels, hospitals, schools, and municipal facilities. To date, the company has received more than 50 patents and completed more than 10,000 projects in China alone. AQT aims to bring the best air quality to people all around the world. Take A Deep Breath.


Herver-9 company was established, mainly engaged in electronics, power supply, transformer products.
Herver-9 Group was established and set up Electrostatic Air Purification Department with brands AirQuality/Calidaddelaire.
Herver-9 is a high-voltage electrostatic purifier for the municipal project in Madrid, Spain. With a wind capacity of 3.6 million m3/h, it is the world's largest single electrostatic purification system.
Herver-9 jointly established AirQuality Air Technology (Shanghai) Co., Ltd. with Super Merit Holdings Limited in China. Herver-9 set up a joint venture in Hong Kong to operate electrostatic air purification of municipal projects.
Herver-9 built Prax factory in Wuxi to produce electronic components, including power module for purifier.
AirQuality Technology increased its capital and established air purification R&D Center and assembly workshop in Shanghai.
AirQuality Technology participated in establishing Calidaddelaire Air Technology to enter the industrial gas market.
AirQuality Technology began mass production of air-conditioning purifiers with MESP technology.
AirQuality Technology establishes a dual vision: Turn any AC to a purifier and Make maintenance-free purifiers.
AirQuality Technology acquired CTA, a Norwegian Tunnel Air Purification International Co., Ltd.

Our Clients




We cherish and thank all the help and support from our clients, distributors and partners, as well as our own employees.


If let us choose, we would like to go with the hardest way.


We believe that if we lose innovation, we will lose the motivation to advance and even the chance of survive.