Both of those things can invite trouble in certain locations
doi: 10.1016/j.indcrop.2025.121171 15 DingK.LiuD.ChenX.ZhangH.ShiS.GuoX.et al
However, non-smokers may find it surprising that there is a small amount of chocolate-like flavor that cannot be smelled in the original cigarette smoke.[1] The quality of the filter is quite poor, after smoking more than half of the cigarette, the filter cracks and shrinks, becoming separated from the paper, and the cracked filter scratches your throat as if you were smoking a non-filtered cigarette, and the area around your mouth becomes extremely hot
Wahle BM, Zolkind P, Ramirez RJ, Skidmore ZL, Anderson SR, Mazul A, Hayes DN, Sandulache VC, Thorstad WL, Adkins D, et al
Rare, but a few portable models exist