Note： 1.Our fog machine can produce great amount of fog in seconds, we would recommend that you use it in a wide-open area to avoid setting of smoke detectors. 2.Please check it frequently whether there has enough fog fluid in the tank before use to avoid damages.（fog liquid is NOT included） 3.Do not touch the machine’s housing when operating because it may be very hot. 4.Do not add any flammable liquids, such as perfume, alcohol, gasoline, or any other flammables to the tank. 5.There may be burnt odor for the first use. That’s normal. About 10 minutes later, this odor will die away.