Guangzhou Yezi Environmental Protection Technology Co., Ltd. is a high-tech environmental protection enterprise specializing in the detection and treatment of indoor air quality. It specializes in the treatment of formaldehyde, benzene, ammonia, and TVOC. As of May 2019, there are more than 800 service outlets across the country. , is a long-term indoor air management service provider for Country Garden and a long-term partner of large groups such as Evergrande, Kaisa and Hilton Hotel.

The company has the Class A qualification for interior decoration pollution control issued by the China Interior Decoration Committee in South China, and has also won the honor of "Quality Reputation AAA" in China's environmental quality testing and governance industry. So far, the company has owned thirteen inventions and utility patents in the field of air purification, and has successfully passed the 1509001:2008 quality system certification and 15014001:2004 environmental management system certification, and cooperated with the School of Materials and Energy of South China Agricultural University and Guangdong University of Finance and Economics. , jointly build a "production, education and research" demonstration base.

As a high-tech enterprise focusing on indoor environmental air management, Yezi Environmental Protection has always adhered to the mission of "committing to improving the human living environment", adhered to the service standard of "not letting go of dissatisfaction", deeply penetrated the formaldehyde removal industry, and formed the A research and development and governance team composed of industry experts. After years of exploration and research and the introduction of international advanced technologies, the leaf photocatalyst adopts visible light technology and can be decomposed and effective without ultraviolet light. All products are non-toxic, harmless, and heavy metals. In addition, the report has received 5 million yuan insured by Pacific Insurance for five consecutive years, and has a 99% sterilization and mold removal effect recognized by the official agency.