Please avoid direct sunlight when using or storing the machine., Keep the machine away from the fire., It is forbidden for allergic people. If there is any adverse reaction during use, please stop using immediately., Do not disassemble the original body at will., Do not use in case of fault or damage., Keep out of reach of children., Do not spray other types of insecticides or repellents on this machine., If the connecting wire or fan is damaged, in order to avoid risks, it must be handed over to professional personnel for repair or change., Care should be taken of children to ensure that they do not play with the machine., Operate the machine according to the instruction. To ensure the normal operation of the machine, please use the spare parts which provided by manufacturer., When the machine is working, please avoid water or wipe the machine directly with a wet towel., It is advised to close the doors and windows when using,in order to reduce air circulation,can improve the range of mosquito repellent effect. Usage Instruction: (1)Connect the USB cable to the USB micro socket, such as a computer, power bank, or mobile charger. | (2) Insert the USB plug into the socket of the machine Type-C. | (3) Click touch switch, switch instruction lamp lights, the machine starts to work. | Click touch switch underworking, switch instruction lamp off, the machine stops to work. | *If you need to restart after a long standby, Need to press and hold the switch button for 2 seconds. CLEANING AND MAINTENANCE: Please turn off the machine and power off before doing any cleaning. Take out the brush and clean the dust in the air outlet and air inlet. (Note: adapter not included)