Formalin {Ans: A type of disinfectant that is generally odorless, colorless, non-toxic, and stable}QUAT {Ans: Quaternary ammonium compound, an odorless, colorless, non-toxic disinfectant}Steam {Ans: A method used in autoclaves to achieve sterilization}Antiseptic {Ans: A substance used to kill or inhibit the growth of microorganisms on the skin}Fumigation {Ans: The process of using chemicals or gases to destroy all organisms}Toxic {Ans: A substance that can cause acute or chronic illness to the human body}Expiration {Ans: The end of the validity period of an esthetics license}Renewal fee {Ans: An additional fee required for late renewal of an esthetics license}Non-compliance {Ans: The absence of certain items in an appearance enhancement workplace}Flammable {Ans: Any liquid having a flashpoint below 100 degrees Fahrenheit}Cleaning {Ans: The process of removing visible dust, soil, and foreign material from an object}Ultraviolet radiation {Ans: The most preferred method of disinfection for salon implements}Display of esthetic license {Ans: The act of visibly showing an esthetic license}Photograph age {Ans: The maximum number of years a photograph on an esthetics license can be}Bacteria {Ans: Microorganisms that are difficult to kill during the infection control process}Isopropyl alcohol {Ans: