Complex sentence: Often in industrial applications the chamber is housed in an outer chamber which contains a desiccant to remove airborne moisture and guard rings are used to reduce leakage through or along the surface of tube connection insulators.
Split into simpler sentences: Often in industrial applications the chamber is housed in an outer chamber which contains a desiccant to remove airborne moisture. Guard rings are often used to reduce leakage through or along the surface of connection insulators.