IATE-1594872

Subject Field	unknown
Is Reference of	Natural ventilation-en#Sense
	Naturlig ventilation-da#Sense
	Ventilazione naturale-it#Sense
	Natuurlijke luchtverversing-nl#Sense
	Atuurlijke ventilatie-nl#Sense
	Natürliche Belüftung-de#Sense
	Ventilação natural-pt#Sense
	Ventilation naturelle-fr#Sense
	Aireación natural-es#Sense
	Αερισμός φυσικός-el#Sense
	Εξαερισμός φυσικός-el#Sense
	Aération naturelle-fr#Sense
	Ventilación natural-es#Sense
	Aerazione naturale-it#Sense