In the field of portable oxygen concentrators, quality not only determines product performance but also carries users' trust in healthy breathing. Suzhou Yangduoduo Medical Technology Co., Ltd. (brand: Jinyang) has always adhered to the development philosophy of "quality first, innovation driven," establishing a comprehensive quality management system that covers the entire process from R&D and production to final testing — from core component selection to complete machine inspection.

The molecular sieve is the core component of an oxygen concentrator, directly affecting oxygen concentration stability and equipment service life. Jinyang uses high‑quality molecular sieves imported from France (CECA) and has built its own fully automatic precision molecular sieve filling line. Through an intelligent weighing and control system, gram‑level precision filling is achieved, with filling error per tower controlled within ±0.1g. The proportioning of the dual‑tower molecular sieves is automatically calibrated by the system, and the entire process — feeding, filling, and sealing — is fully automated, ensuring long‑term stable oxygen concentration output. Thanks to the proprietary quick‑release molecular sieve structural design, users can replace modules without returning the unit to the factory, significantly reducing post‑maintenance costs.

The compressor, as the power core of the oxygen system, is often referred to as the "heart" of the concentrator. Jinyang selects high‑performance pure copper oil‑free compressors and subjects them to rigorous durability testing. The units have successfully passed a 1000‑hour continuous oxygen production challenge, ensuring stable and efficient oxygen delivery even under complex conditions such as prolonged operation, high temperatures, and high altitudes.

In the production process, every unit after assembly must go through an automated aging test line. Relying on its independently developed Automatic Aging Test System for Oxygen Concentrators, all products in the medical‑grade YDD series as well as the ROC, Cloud, and F series undergo continuous full‑load aging for no less than 4 hours. Key parameters — including oxygen concentration, flow rate, temperature, and compressor operating status — are monitored throughout the process to ensure that every unit leaving the factory meets stringent quality standards.

As a professional medical device manufacturer, Jinyang has obtained ISO 13485 certification for its quality management system, along with a medical device production license and NMPA medical device registration certificates. The entire process of product R&D, production, and quality management strictly complies with medical device regulatory requirements.

Looking ahead, Jinyang will continue to focus on the portable oxygen therapy sector, upholding independent R&D and precision manufacturing. It is committed to developing safe, reliable, and portable oxygen products to higher standards, and delivering trustworthy respiratory health solutions to users worldwide.