1
Filtering materials [vegetable substances]
11
Filters for industrial and household use; Industrial treatment installations; Industrial installations for the filtration of liquids; Flues and installations for conveying exhaust gases; Installations for the collection of liquids; Bioreactors for clarifying industrial waste water; Regulating and safety accessories for water and gas installations; Air purifying apparatus and installations; Filters for exhaust extractors [parts of household or industrial installations]; Separators for scrubbing air; Air purifying apparatus; Air purifying apparatus; Air purifying apparatus; Filters for cleaning gases [parts of household or industrial installations]; Filters for cleaning air; Gas cleaners and purifiers; Air purifying apparatus; Air purifying apparatus; Scrubbing columns for the purification of gases; Scrubbing towers for the purification of gases; Apparatus and filters for biological exhaust air purification and installations consisting thereof, and parts for the aforesaid installations; Filter installations; Bio-filter installations; Humidifying and misting installations and parts for the aforesaid installations; Bio-filter reactors; Bio-filter modules in the form of parts of bio-filters; Gas outlet valves in the form of parts of installations for purifying air, exhaust air or gases; Water stops for keeping surface water away from sewage ducts, in the form of parts for purifying air, exhaust air or gases; Bio-filter cartridges (parts of household or industrial installations); Filters in the form of parts of installations for purifying air, exhaust air or gases; Air filters, other than in the form of parts of motors or machines; Tarpaulins, sails, sacks and bags, nets, adapted for, and for use with, bio-filters, installations for biological exhaust air filter systems, filter installations, bio-filter installations, and with humidifying and misting installations; Parts and accessories for all the aforesaid goods, included in this class
16
Plastic articles for packaging, wrapping and storage
17
Semi-worked plastic substances; Finished and semi-finished products for ventilation floors of filtering materials of plastic; Parts and accessories for all the aforesaid goods, included in this class