A fume extractor is a vacuum or fan device. Fume extractors are primarily used by welders to remove hazardous smoke and particulate. Fume extractors are also known as local exhaust ventilators, source capture air cleaners, or smoke eaters. Fume extractors range from handheld portable devices to fixed position multi-workstation systems. Fume extractors use cleanable or changeable filters. Fume extractors are of various types, from bench-top fume extractors, mounted fume extractors, exhaust hoods and portable spray booths among others.