Diffuser is a household appliance that can increase room humidity to wet the designated room or connect to a boiler or central system of air conditioning to wet the entire building. According to the theory of heat and wet exchange, the humidifier is divided into two types in the actual engineering:Equal enthalpy humidifier&Isothermal humidifier. Teencher Inspection team consists of professional quality control and international trade experts, each member with extensive inspection experience and very strong sense of service. our inspection can help you to reduce logistics costs, return risk, complaints, compensation and potential brand reputation due to quality problems.