11 Ventilation systems in the nature of ventilation fans, pipes, ducting, air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, control units, window intakes, trickle ventilators, self-controlled trickle ventilators being ventilators regulating airflow on the basis of defined physical factors; ventilation systems used for purposes of heat recovery consisting of fans, heat exchangers, ventilation fans, pipes, ducting, air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, control units, window intakes, trickle ventilators, self-controlled trickle ventilators being ventilators regulating airflow on the basis of defined physical factors; centralised and decentralised regenerative ventilation systems consisting of fans, heat exchangers, pipes, ducting, ventilation fans, air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, control units, window intakes, trickle ventilators, self-controlled trickle ventilators being ventilators regulating airflow on the basis of defined physical factors; ventilation units with heat recovery; centralised and decentralised ventilation units with heat recovery; centralised and decentralised regenerative ventilation units with heat recovery; compact ventilation units with heat recovery; compact decentralized ventilation units with heat recovery; alternating centralised regenerative ventilation systems consisting of fans, heat exchange coils, pipes, ducting, air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, control units, window intakes, trickle ventilators, self-controlled trickle ventilators being ventilators regulating airflow on the basis of defined physical factors; alternating decentralised regenerative ventilation systems consisting of fans, heat exchange coils, pipes, ducting, air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, control units, window intakes, trickle ventilators, self-controlled trickle ventilators being ventilators regulating airflow on the basis of defined physical factors; air intakes, self-controlled air intakes being intakes automatically regulating airflow on the basis of defined physical factors, pressure-controlled air intakes, all for ventilation; hygroregulated (humidity-regulated) air intakes for ventilation being air intake ducting that regulates airflow on the basis of air humidity, window ventilators, hygroregulated (humidity-regulated) window ventilators being ventilators located on exterior windows that regulate airflow on the basis of air humidity; control units and ducting for air conditioning and air ventilation purposes; air filtration and air-conditioning installations; ventilation hoods; draft inhibitors in the nature of air-conditioning apparatus; window ventilators in the nature of fans, filtering apparatus, self-controlled window ventilators being ventilators regulating airflow on the basis of defined physical factors, over frame window ventilators, temperature-controlled over frame window ventilators, pressure-controlled over frame window ventilator, hygroregulated (humidity-regulated) over frame window ventilators, self-controlled over frame window ventilators being ventilators automatically regulating airflow on the basis of defined physical factors, pressure-controlled window ventilators, hygroregulated (humidity-regulated) window ventilators being ventilators located on exterior windows that regulates airflow on the basis of air humidity, air-conditioning apparatus, air intakes, self-controlled air intakes, pressure-controlled air intakes for ventilation, hygroregulated (humidity-regulated) air intakes for ventilation being air intakes that regulate airflow on the basis of air humidity, window intakes, over frame window intakes, temperature-controlled over frame window intakes, pressure-controlled over frame window intakes, hygroregulated (humidity-regulated) over frame window intakes, self-controlled over frame window intakes being intakes automatically regulating airflow on the basis of defined physical factors, trickle ventilators, self-controlled trickle ventilators; over frame trickle ventilators, temperature-controlled over frame trickle ventilators, pressure-controlled over frame trickle ventilators, hygroregulated (humidity-regulated) over frame trickle ventilators, self-controlled over frame trickle ventilators being ventilators automatically regulating airflow on the basis of defined physical factors, hygroregulated (humidity-regulated) ventilators, namely, hygroregulated (humidity-regulated) window ventilators and hygroregulated (humidity-regulated) air intakes for ventilation, all being devices that regulate airflow on the basis of air humidity; ventilating louvers; exhauster ventilators for domestic and industrial use; ventilation system elements, namely, ventilation fans, air intakes, self-controlled air intakes, pressure-controlled air intakes for ventilation, hygroregulated (humidity-regulated) air intakes for ventilation being air intakes that regulates airflow on the basis of air humidity, window ventilators, control units, fans, switches, ducting, motors; ventilators for domestic and industrial use; air-conditioners; air-conditioning system elements, namely, fans, switches, ducting, motors, pumps, condensers; ventilation apparatus for waste heat recovery in the nature of heat pumps, heat pipe exchangers, coils; heating machines being heat pumps, heat generators, and furnaces; radiators; air-purifiers; all of the aforesaid goods not for use in the food-processing industry, and not for use in food-processing or baking machines and installations, or for the ventilation thereof