The pass box is an airflow isolation device in the clean room to ensure that cross-contamination is avoided when items are transferred. Its interlocking function ensures that once one of the doors is opened, the other is locked for protection, thereby avoiding the cross-contamination of air flow between two different levels of rooms. Its interior is equipped with ultraviolet germicidal lamps, which can effectively kill microorganisms or bacteria entering the inner chamber of the transfer window and maintain a clean environment for the inner chamber. It is widely used in hospitals, pharmaceutical factories, biological laboratories, cosmetic factories, electronics industry, food processing industry and other places.

1. The structure of built-in door does not have the disadvantage of dust accumulation on the door like the structure of external type, which is convenient for maintaining the clean room environment.
2. The structure of integrated door does not have the disadvantage of poor air tightness in the joint position of the square tube door structure, which is conducive to maintaining the air tightness between rooms.
3. The special card-slot type for door seal strip is more firm and durable after installation, and there is no disadvantage of the aging then falling off as adhesive seal is.
4. Mechanical interlock and electronic interlock is available according to the usage requirement.
5. Different corner styles and different opening directions can be customized according to the site layout.
6. Options like the inner and outer SS304 stainless steel material or the inner stainless steel and the outer Steel plate spraying, is available as per demand.
7. Interphone can be added as per demand.

Founded in 2006, Foshan City Zhongjing Purification Equipment Co., Ltd. (Zhongjing in Chinese) is a provincial high-tech enterprise integrating design, development, production, sales and installation services for high-class purification equipment.The company is located in Nanhai, Foshan, a famous manufacturing city in China. The company covers an area of more than 20,000 square meters and has more than 200 employees, including more than 20 R&D personnel, and production technicians account for more than one-third of the total employees.

The products produced by Zhongjing Purification include 6 series of Pharmaceutical factory/laboratory equipment, hospital construction equipment, purification equipment, purification filters, stainless steel products, and purification engineering supporting products, with more than 400 varieties. The products are produced according to the national GMP standard, the US federal FS209E standard and the IS09001 quality certification standard.
Products are widely used in the medical industry, bio-pharmaceuticals, cosmetics, food production, electron-ic products and other industries, and have been serving the Guangdong product quality supervision and Inspection Center,Nanfang hospital,Guangdong Provincial People's Hospital,the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine,Zhuhai people's hospital, Guangdong Livzon Pharma-ceutical Group Inc., Guangzhou baiyunshan medicine co,Itd,Zhuhai United laboratories,LEE KUM KEE,Wat-sons,FAW-Volkswagen,
Lenovo Group,Beijing Genomics institutionand other well-known enterprises.

All along, our company pays attention to technological innovation, and its products have obtained a number of national invention patents and utility model patent certificates.The company now has a group of imported CNC punching machines, CNC shearing machines, CNC bending machines, fiber laser machines, automatic welding equipment and other advanced production equipment.The company selects raw materials  and accessories from well-known manufacturers such as Baosteel, Yongjin, etc., to ensure the manufacture of high-quality products for  customers.The company's products sell well all over the country and serve more than 2,000 customers. The company's brand enjoys a high reputation in southern China!

Zhongjing Purification is also the vice president unit of Guangdong Association of Cleanroom Technology, the governing unit of Guangdong Laboratory Design and Construction Technology Association, the member unit of Shenzhen HVAC Cleaning Industry Association, and the member unit of Shenzhen Cleaning Association,a member unit of the Medical Clean Equipment Engineering Branch of China Medical Equipment Association, contributing to the advancement of the industry.

Zhongjing Purification takes "making clean space safer and making customer products more high-quality" as its mission, "becoming a trusted partner of high-quality clean space" as its goal and vision, and "realistic, talented, enterprising, professional, and trustworthy" as its Entrepreneurial spirit; abide by the value concept of "service first, keep improving, Good Quality Management, Dedication, Responsibility , and Create and share together", and wholeheartedly provide customers with high-quality products with reasonable design and well-made, and continue to create value for customers.

Company values

Service first - Customer is the God ,we regard ourselves as a member of customers, in order to allow customers to make better solutions, we will understand the needs of customers in more detail and make the best product solutions.

Keep improving-Today's best performance is tomorrow's minimum requirement.
We strive to be the best at everything we do, in order to provide customers with better services and products.

Good Quality Management-We regard product quality as our life, from material selection to processing technology, we strictly control and strive for perfection

Dedication our own post, we do what we should do well, do not need the supervision of others, are self-conscious, result-oriented, and go all out to make achievements.

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