11 Refrigerating appliances, namely, fire fighting appliances that produce coolness by evaporation; water distribution and sanitary apparatus and installations, namely, units for water distribution and intake, as well as in sanitation, for preventing and controlling fires and chemical accidents; humidifiers; showers for cooling places and people, highway areas, beaches, campsites, parks, parking lots, golf courses, sports stadium, expositions, trade fairs, funfairs, terraces of cafes or restaurants, industrial zones and other public places