45331211 - Outdoor ventilation installation work

CPV code 45331211 in the EU Common Procurement Vocabulary refers to Outdoor ventilation installation work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45331200, narrowing the broader category into the specific area of outdoor ventilation installation work. As a leaf code, 45331211 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns outdoor ventilation installation work. Contracting authorities across the EU use 45331211 in TED notices and national procurement portals to signal that a tender relates to outdoor ventilation installation work.