Low smoke zero halogen (LSOH or LSZH) is a material classification used within the electrical/data-comms industry. LSOH flexible conduits are composed of thermoplastic or thermoset compounds that emit limited smoke and no halogens when exposed to high sources of heat (ie. flame).

In fires, a halogen-containing plastic material releases hydrogen chloride, a poisonous gas, which forms hydrochloric acid when it comes in contact with water. Our LSOH flexible conduits, on the other hand, do not produce a dangerous gas/acid combination or toxic smoke when exposed to a flame.

Low smoke zero halogen conduits reduce the amount of toxic and corrosive gases emitted during combustion. These types of materials are typically used in poorly ventilated areas such as aeroplanes and trains as well as hospitals, schools and offices. Low smoke zero halogen is becoming very popular and in some cases a requirement in instances where the protection of people and equipment from toxic and corrosive gasses is critical.