A B O U T   U S

About HeHeng

Brand Story


Redefining Classics, Achieving Extraordinary

In 2001, Mr Yap Wee Keong set foot in China, full of passion, and founded MayAir.

MayAir, representing "the air of May", symbolizes the concept of cleanliness, environmental protection, health and comfort that MayAir advocates.


How can the little eagle fly to the sky without experiencing strong winds and rains? MayAir has grown from a start-up company to owning its production and R&D base of about 50,000 square meters. Its business has expanded rapidly, and its sales network has spread worldwide. These are the fruit of a step-by-step journey with persevering courage and a strong belief to move forward.


During the development of MayAir, there were several classic products with irreplaceable significance. They are fan filter units, high-efficiency filters, low-medium efficiency filters, chemical filters, electrostatic filters, air purifiers, industrial dust removal and oil mist removal equipment, and VOCs treatment equipment. These products have helped MayAir's success, progress and growth.


MayAir is committed to promoting the development of the air purification industry and improving the air quality worldwide. The company's plan is to increase investment in brand building, technology research and development, talent training, quality control, etc. The company will adopt a market-oriented, innovation-driven strategy in line with national industrial policies. It will also vigorously expand downstream markets and application fields into developing new technologies and applications to improve manufacturing capacity and quality. Additionally, MayAir will comprehensively use the latest technology to enhance the company's core competitiveness and realise its vision and mission.

Historic Milestone


MayAir was successfully listed on SSE STAR MARKET, Shanghai.
Passed the recognition of Jiangsu Provincial Enterprise Technology Cente.
Approved to set up national post-doctoral scientific research workstation.


Awarded as "The Little Giant" by Ministry of Industry and Information Technology.

Approved for the establishment of Postdoc Innovation Center in Jiangsu Province.


Accredited by the national CNAS laboratory.
Gained recognition from the 3 key authorities, Development and Reform Commission, Municipal Science and Technology Bureau;
Recognised by the Ministry of Industry and Information Technology as of one the key enterprises for National Prevention and Control of the "Coronavirus Pandemic".


New plant in Malaysia was put into operation. Sales networks were further expanded to international markets, typically Southeast Asia, South Asia, Middle-East and Europe.


Privatized from London Stock Exchange (LSE) and capitals returned to China.

Diversified into environmental and gas phase pollution control industries.

Ventured into new industries with innovative technologies.
Established MayCare and MayTech.


The newly-built R&D centre and manufacturing plant of 40,000 m2 in Nanjing was put into operation.
Chengdu manufacturing plant was put into production.


MayAir Group plc was listed on London Stock Exchange (LSE).

The first international production line of advanced filter material (PTFE) was put into operation.


Tianjin factory officially put into production


Diversified into commercial industry when the patented technology of EACBF (Combination of Electronic Air Cleaner & Bag Filter) achieved remarkable breakthroughs in PM2.5 filtration for China’s first ever commercial project.


ZhongShan、TianJin manufacturing plants were put into production.


Established the industry position in the professional field of electronic clean room - Became the supplier of Hefei BOE and the first FFU supplier that BOE chose to replace foreign brands


Qualified as vendor of SMIC. Safeguarding the production lines from then till now.


Awarded as a high-tech enterprise.


Ventured into electronic industry and facilitated the growth of China's semiconductor industry.


The Company was established,based in China in 2001.



Promote the development of purification industry and improve global air quality