Cov khoom xyaw ntxiv hauv cov luam yeeb yog nicotine thiab tar, tab sis cov luam yeeb hauv hluav taws xob tsis muaj tar; Txhawm rau kom rov ua kom lub caj pas-throbbing kev xav ntawm cov luam yeeb, cov luam yeeb hauv hluav taws xob ntxiv qhov tsim nyog ntawm cov nicotine, uas tseem yuav ua rau muaj kev quav yeeb quav tshuaj, tab sis cov tar thiab carbon monoxide yog cov neeg haus luam yeeb ntau tshaj plaws.
Cov luam yeeb hluav taws xob yog cov luam yeeb uas tsis yog hluav taws xob. Nws muaj lub plhaub, lub hnab luam yeeb, lub plua plav lim, lub thawv txuj lom, lub teeb-emitting diode, lub hwj chim, thiab lub hau luam yeeb. Nws tsis hlawv thiab tsuas muaj purified nicotine, tsis muaj tar, tsis muaj Cov luam yeeb uas muaj cov tshuaj uas ua rau cov kab mob ua pa thiab cov hlab plawv.
