A demister is also called a mist eliminator, a wire mesh separator, a wire blanket, etc. It has a function to separate and eliminate mist or dust from vapor. It is made of a variety of materials according to the conditions of use, so it can be used semi-permanently.

The structure is so simple that it is easy to install and repair. The structure is made in the form of the mat where thin wire is woven into crimped wire mesh, and this woven wire mesh is piled up in several layers. The finished product creates the complex inertia impaction structure, and a negligible amount of pressure loss occurs because free volume is 98% or so.

Small particles of mist that are scattered when gas on the liquid surface is separated are entrained in the gas, and pass through the demister. Before passing, those particles grow in size on the pad surface on the basis of 1) the inertia impaction theory; 2) the fact that they are directly removed when contacting over 1/3 of the wire diameter; 3) the Brownian principle. After that, the particles including foreign substances fall free due to their own weight to pass though the demister, and then the gas becomes pure, clean, and dry vapor free from impurities.