11 Regulating and safety accessories for water and gas installations; gas burners, laboratory burners, acetylene burners, furnace boilers, electric boilers, heating boilers and vehicle heaters, hot water heaters, gas patio heaters; conduits and installations for exhaust gas extraction, namely, ventilating exhaust fans; filters for industrial and household use, namely, filters for air and gas conditioning, filters for air extractor hoods, aquarium filter; drying installations, namely, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems, forage drying apparatus, laundry drying machines; nuclear installations, namely, nuclear generators, nuclear reactors, nuclear power plants; sanitary installations, namely, steam rooms, pipes being parts of sanitary facilities, water supply and sanitation equipment, namely, filters for drinking water, electrostatic water treatment apparatus, pressure regulators for water installations; personal instruments for drying and heating, namely, electric dish dryers, electric hair dryers, electric space heater; lighting installations and reflectors for lighting; equipment for heating, ventilation and air conditioning, namely, ventilation hoods, hot water heaters, air conditioning units; ambient air purification units; equipment for processing foodstuffs and beverages, namely, heating, cooling and humidity controlling units for processing dough, immersion style chiller for use in food processing, functioning as last bacteriological intervention point in the chilling system; refrigerating and freezing equipment, namely, refrigerators, freezers