hazebase fog liquids are made from pure chemical substances that are also used in the cosmetics, pharma and food industry. The quality of the commodities is ensured by permanent laboratory tests. A harmful to health effect of these commodities concerning their use as fog liquids has not been noticed. Not one of the used commodities is classified in the Ordinance of Hazardous Substances, neither regarding MAC (maximum allowable concentration) tolerances nor regarding their handling and transport. Nevertheless, the common precautions for handling chemicals should be noticed. When using fog or haze it is always necessary to provide enough fresh air. A permanent and continuous fogging should be avoided. The visibility should not fall under 5 meters. Otherwise people can get disoriented (danger of panic). Leaked or spilled fog liquid can cause slippery spots on flat floors.