Concentrator refers to the amount of a substance in a defined space. Concentration is especially used for concentrating or preparing sample in batches in laboratory. - The heater heats the sample rapidly to the evaporation temperature, and at the same time, the gas is blown to the surface of the solution through the gas needle, which promotes rapid evaporation of the solution and concentration of the sample - The height of the air cavity can be adjusted. The length of a standard gas needle is 80 mm - The entire equipment can be put into ventilation cabinet when the concentration sample in toxic solvents - Built in overheat protection, automatic fault detection and fault beep alarm devices