Aerosol-generating article with ventilation

Abstract

An aerosol-generating article is provided, including: an aerosol-generating substrate; and a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article, a resistance-to-draw of the downstream section being less than 10 mm H 2 O, the downstream section including a first ventilation zone configured to provide ventilation into the downstream section, the first ventilation zone including a first line of perforation holes circumscribing the downstream section, the aerosol-generating substrate having an aerosol former content of at least 10 percent on a dry weight basis, and a downstream end of the first ventilation zone being located between 8 millimetres and 20 millimetres from the downstream end of the aerosol-generating article.

1 .- 15 . (canceled) 
     
     
         16 . An aerosol-generating article, comprising:
 an aerosol-generating substrate; and   a downstream section extending from a downstream end of the aerosol-generating substrate to a downstream end of the aerosol-generating article,   wherein a resistance-to-draw of the downstream section is less than 10 mm H 2 O,   wherein the downstream section comprises a first ventilation zone configured to provide ventilation into the downstream section, the first ventilation zone comprising a first line of perforation holes circumscribing the downstream section,   wherein the aerosol-generating substrate has an aerosol former content of at least 10 percent on a dry weight basis, and   wherein a downstream end of the first ventilation zone is located between 8 millimetres and 20 millimetres from the downstream end of the aerosol-generating article.   
     
     
         17 . The aerosol-generating article according to  claim 16 , wherein the downstream end of the first ventilation zone is located no more than 25 millimetres from the downstream end of the aerosol-generating article. 
     
     
         18 . The aerosol-generating article according to  claim 16 , wherein the downstream end of the first ventilation zone is located at least 8 millimetres from the downstream end of the aerosol-generating article. 
     
     
         19 . The aerosol-generating article according to  claim 16 , wherein an upstream end of the first ventilation zone is located at least 20 millimetres from an upstream end of the aerosol-generating article. 
     
     
         20 . The aerosol-generating article according to  claim 16 , wherein an upstream end of the first ventilation zone is located no more than 37 millimetres from an upstream end of the aerosol-generating article. 
     
     
         21 . The aerosol-generating article according to  claim 16 , wherein the aerosol-generating article has a ventilation level of between 10 percent and 80 percent. 
     
     
         22 . The aerosol-generating article according to  claim 16 , wherein the first line of perforation holes comprises between 5 perforation holes and 40 perforation holes circumscribing the downstream section. 
     
     
         23 . The aerosol-generating article according to  claim 16 , wherein the first line of perforation holes comprises at least one perforation hole having a width of between 50 micrometres and 200 micrometres. 
     
     
         24 . The aerosol-generating article according to  claim 16 , wherein the first line of perforation holes comprises at least one perforation hole having a length of between 400 micrometres and 1 millimetre. 
     
     
         25 . The aerosol-generating article according to  claim 16 , wherein the first ventilation zone further comprises a second line of perforation holes circumscribing the downstream section. 
     
     
         26 . The aerosol-generating article according to  claim 16 , wherein a total resistance-to-draw of the aerosol-generating article is between 0 mm H 2 O and 25 mm H 2 O. 
     
     
         27 . The aerosol-generating article according to  claim 16 , wherein the downstream section further comprises an unobstructed airflow pathway from the downstream end of the aerosol-generating substrate to a downstream end of the downstream section. 
     
     
         28 . The aerosol-generating article according to  claim 27 , wherein the unobstructed airflow pathway from the downstream end of the aerosol-generating substrate to the downstream end of the downstream section has a minimum diameter of 3 millimetres. 
     
     
         29 . The aerosol-generating article according to  claim 16 , wherein the downstream section further comprises a hollow tubular element.