Fume extraction involves high temperatures and sparks, which must be cooled and trapped before entering the baghouse.

Spark arrestors can be either baffle or cyclonic type, with the cyclonic design being the most effective.

Cyclonic separation is a method that removes particulates from the air stream without filters, using rotational effects and gravity to separate solids. A cyclonic spark arrestor achieves 95% mechanical efficiency for dust particles up to 10 microns.