1. THE AIR STRIP IS MADE OF HIGH-QUALITY NYLON PVC MEDICAL GRADE FABRIC, WHICH HAS GOOD MOISTURE ABSORPTION AND BREATHABILITY, SOFT AND COMFORTABLE FEEL, AND THE THICKNESS OF THE AIR STRIP MATERIAL ≥ 0.34MM. 2. The mattress air strip material has passed the "biocompatibility test". 3. The bed mat is composed of 20 air strips with a diameter of 9.5CM, and the two tubes fluctuate in circulation. 4. The production enterprise has passed the Germany TUV SUD ISO13485 quality management system certification; Through the effective and comprehensive implementation of the ISO quality management system, effective quality control is ensured throughout the mattress manufacturing process.