S02 is a model designed for small area such as home, office, meeting room etc. It is made of all-aluminum alloy and looks high-end & stylish, which can be perfectly integrated with the use environment. It is very quiet when working and will not disturb people‘s sleep or work. In addition, it has added newest inverted leak-proof technology, so you don‘t have to worry about the risk of fragrance oil leakage causing damage to the machine.