Suggested is a device for assessing the sillage of fragrance materials, comprising or consisting of the following parts: (i) an evaluation tube (1) that is open on both ends； (ii) a ventilation system (2)； (iii) at least two lockable sniffing ports (3a, 3b . . . )； (iv) a sample port (4)； (v) a sample plate (5) and optionally (vi) a sample holder (6) whereby (a) said evaluation tube (1) is aligned horizontally and equipped with said at least two sniffing ports (3) and said sample port (4)； (b) the front opening of said evaluation tube (1) is equipped with said ventilation system (2)； (c) at least one sniffing port (3a) is located in the front section and at least one sniffing port (2b) is located in the rear section of said evaluation tube (3)； (d) said sample port (4) is located within the front section of said evaluation tube (1)； and (e) said sample port (4) has a diameter allowing to introduce either the sample plate (5) or the sample holder (6) into the evaluation tube (1).
