ENT Endoscope is applied to the routine inspection of ear, nose, throat ... other parts of human body or aapost-operative examin ENT Endoscope,Endoscope is applied to the routine inspection of ear, nose, ... the external auditory canal, tympanic membrane, blood vessels of ear, nasal cavity, throat and other parts of human body easily and ... 50°C< 85%RHAmbient humidity:during working < 85% RH ENT Endoscope