| 摘要 |
A smoking article is provided, including a combustible heat source with opposed front and rear faces and at least one airflow channel extending from the front face to the rear face of the combustible heat source, and an aerosol-forming substrate including at least one aerosol former downstream of the combustible heat source, wherein a non-metallic, non-combustible, gas-resistant, first barrier coating is provided on substantially all of the rear face of the combustible heat source. |
