Anvil soldering fume filter anvil av ext a mains powered unit for the filtration and removal of soldering and other fumes from the immediate vicinity of the userwhen soldering in the workplace or classroom it is advisable to have some kind of fume extraction or fume filtering systemthe unit removes fumes safely and efficiently by drawing the air through replaceable carbon filters simply place the filter close to the work area and switch it on anvil av ext fume extractor esd