NV-8G Nitrogen Evaporator is widely used in all kinds of chemical labs. The compact design make it easy to put into fuming hood. Maximal 8 samples for NV8G and 15 samples for NV-15G could be processed simultaneously, and each channel could be closed when less sample is processing. And the heating block is compatible with common tubes and 12mL vials. The venting needles could be lifted or brought down to adjust the height, and keep the airflow close to the liquid interface.