11 Water conditioning units; water purification units; air and water filters for industrial and household use; heating, ventilating, and air conditioning and purification equipment and systems; sterilization, disinfection and decontamination equipment and devices; water purification, desalination and conditioning installations; cooking, heating, cooling and preservation equipment, for food and beverages; water treatment installations for industrial purposes; refrigerating and freezing equipment; personal heating and drying implements; sanitary installations, water supply and sanitation equipment; drying installations; transportable water treatment devices; water disinfection apparatus