The 85th China International Medical Device Expo 2021 was successfully held in Shenzhen from October 13th to 16th,2021.except displayed the regular new generation low noise 3/5/10 Liters oxygen concentrator and compressor nebulizer products,keyhub also displayed the new handheld compressor nebulizer and innovative new leading technology for high-flow oxygen system.Many customers visited our booth and have high praise for our products.we hope to offer the good quality and innovative based products to the word wide customer.