Air filtering installations; Air purifiers for automobiles; Air purifying apparatus; Air purifying apparatus and machines; Apparatus and installations for decomposing toxic substances in water; Desalination units; Drinking fountains; Electric bath-water purifying apparatus for household purposes; Electric kettles; Germicidal lamps for purifying air; Oil purifying installations; Sewage purification apparatus; Swimming pool water cleaning and filtering units; Vehicle-mounted air purifying appar...