Many industrial environments have invisible airborne substances, like dust and moisture, that can damage electronic equipment. There are other less common substances that are found in specific industrial environments that can be even more damaging. Sulphur is one of those substances. Airborne sulphur uses moisture in the air and is corrosive to the copper and silver commonly found in the conductive traces on circuit boards, in LCD circuits and resistive touch screens. All of these components are found in the construction of an industrial lcd monitor.