Company Products Since 2014, ZHENJIANG AKK IMP.&EXP. CO.,LTD . commits in the OEM & ODM manufacturing and distribution of Medical Nebulizers, Incentive Spirometers, Asthma Spacers, Nose Wash Device, Nebulizer Chamber & Mask Kits and other Respiratory Care Devices and medical disposables. Certifications The factory was certified by TUV Rheinland for EN ISO 13485:2012 Quality Management System.