Abstract: The compact scent delivery system (300) comprises: —a compact scent delivery device (100, 200), —an air flow mixing unit (400) comprising: 5—an inlet (405) for scented air, configured to be connected to an outlet (125) of scented air of the compact scent delivery device, —an outlet (410) for mixed scented air directed at a smelling port (415), —a conduit (420) connecting the inlet for scented air and the outlet for mixed diluted scent air and 0—at least one element of: —an inlet (425) for fresh air, configured to be connected to a fresh air delivery apparatus, said inlet delivering fresh air into the scented air stream between the inlet for scented air and the outlet for mixed scented air and/or 5—an outlet (430) for waste scented air, configured to be connected to an air flow retrieval apparatus and/or a waste air exhaust, said outlet retrieving scented air from the scented air stream between the inlet for scented air and the outlet for mixed scented air to reduce the air flow either for subsequent dilution

Abstract: The present disclosure relates to a fastening device for fixing a radar-based fill level gauge to an outer grating of an intermediate bulk container tank. The device comprises a clamping retainer, which can be clamped to a grating bar of the outer grating, and an adapter having a first fastener configured such that the fill level gauge can be mounted detachably on the adapter. The adapter also includes a cut-out, through which radar signals of the fill level gauge can be sent towards the filling material when in the mounted state. In addition, the device comprises a second fastener configured such that the fill level gauge can be fastened indirectly to the clamping retainer. According to the present disclosure, the outer grating is used to fasten the fill level gauge to the container.