Abstract: Building structural connector having at least one longitudinal two-part distancing member fitted with technical measures allowing to adjust its length, as well as fixing members connected thereto on both sides for the fixing of the connector to the shuttering panels, as well as fitted with vertical plates perpendicular to the longitudinal axis of the connector, characterized in that the entire distancing member (1) is placed between the inner surfaces of the shuttering panels (9) and ends on its both ends with distancing plates (5) having sockets (6) with a thread corresponding to the threaded end (10) of the fixing member (2) inserted therein, where the fixing member (2) ends on its other end with the limiting plate (11) and takes the form of a rod slipped into the ducts (12) of the shuttering panel.

Abstract: Nose apparatus having two flat oval replaceable filtering inserts connected to each other, characterised in that it has an external flexible carrying frame (1) in the shape resembling reversed letter V matching and adjusted to be fixed on the nasal bridge, to the bottom ends of which are fixed horizontal clamps (3) of the filtering inserts (4) and vertical elements (2) adjusted to be placed inside the nasal openings, where the clamps (3) with the filtering inserts (4) fit tight on the outside of the nasal openings, and the bottom ends of the flexible carrying frame (1) together with the vertical elements (2) form clasps on the nostrils.