SMOKING ARTICLE WITH CAVITY AT THE END BROUGHT TO MOUTH, AND VENTILATION Russian patent published in 2020 - IPC A24D3/04 

FIELD: smoking accessories.

SUBSTANCE: smoking product contains a tobacco rod and a filter connected to the tobacco rod. Filter comprises first filter segment and hollow tubular segment located downstream relative to first filter segment. Hollow tubular segment defines a cavity at the end brought to the mouth of the filter, providing a channel for unlimited flow, which passes from the downstream end of the first filter segment to the end brought to the mouth of the filter. Length of the hollow tubular segment makes at least approximately 25 percent of the total length of the filter. In addition, the smoking article comprises a ventilation zone comprising at least one annular row of perforation holes provided in the area around the first filter segment.

EFFECT: disclosed is a smoking article with a cavity at the end brought to the mouth, and ventilation.

30 cl, 3 dwg