In big industrial processes where gas streams have to be smooth, collecting electrodes are used for electrostatic charging of particles and subsequent collection of the charged material onto collection surfaces in the gas stream. Collecting Electrodes form passages center of which discharge electrodes are suspended.

Collecting Electrodes are shaped to provide quiescent zones to prevent the collected dust from being entrained by the gas stream. Collecting Electrode guarantees a very even gas distribution wth a low pressure loss and minimum expenditure on material.

The air is also cleaned due to collection of solid articles or liquid droplets from gas streams.