The project “Central vacuuming of agglomeration 1 and the refinery station 2” in the area of Třinec Ironworks, a.s. Třinec (hereinafter TŽ), is an ecological construction carried out to reduce emissions to the air from the operation of Aglomeration 1. Traffic is very dusty. The purpose of the project is to reduce the drift of dust emissions from the operation of Aglomeration 1 during cleaning work in the area of production and handling facilities in the existing buildings of the agglomeration centre – in the Aglomeration 1 building and the cleaning station.