When using this machine, it is necessary to strictly use the purified water or distilled water after dechlorination to avoid the residual chlorine in the tap water: chloroform, etc. Please turn off the switch immediately after usi the liquid to prevent heat burns for a lo time. Please do not use corrosive disinfectant to avoid corrode the pipeline and cause a blockage. After each use, make sure to make it work again with clean water to clean the pipeline. Please use white vinegar to add a bottle of water to clean the spray gun each week to prevent the pipeline from bei blocked. The power cord must not be scratched, damaged, excessively bent, pulled, twisted or knotted, and should not be loaded with heavy objects or tight or treaty. Otherwise, it may cause electric shock, short circuit and fire. When not used for a lo period, please turn off the power and unplug.