Operating system programmes; operating system programmes for use in connection with fume extractors, and fume extraction apparatus and equipment

Ventilating apparatus being fume extractors for household and industrial use, and component parts therefore; fume extraction apparatus and equipment, namely, solder fans, welding fans, induction fans, smoke extractors, filters for fume extractors and air extractor hoods for household and industrial use, and component parts therefore; filters for fume extractors hoods