... devices is used for suction sputum, suction saliva, suction Nongxue XT Manual suction sputum devices is used for suction sputum, suction saliva, suction Nongxue. This product uses ... Units and home care for medical useScopeBe used for suction sputum, suction saliva, suction Nongxue Main Specifications1. Limit negative pressure value 0.06Mpa2 ...