This unit is popular in extraction of essential oil from plants,flowers,leaves,wood, such as rose,lavender,eucalyptus leaves,lemongrass,citronella,sandalwood, agilawood etc.By steam distillation or water distillation, the steam passes through plants material and vaporizes oil,mixtures of steam and oil vapors go into the condenser.After the cooling,oil formed.This is the ideal device for you to make essential oil no matter for laboratory use or batch production.