drinking fountains; electric coffee percolators; electric coffee pots; electric coffeemakers; electric water purifiers for household purposes; filters for extractor hoods; filters for water purifiers; extractor hoods for kitchens; faucet filters; coffee machines incorporating water purifiers; cold and hot water dispensers; apparatus for softening water; air purification apparatus; air purifiers; air purifiers for household use; installations for purifying water; installations for the purification of sewage; reverse osmosis water purification units; water purification apparatus; toasters