Thaum nws los txog rau kev tsim txom ntawm cov luam yeeb, thawj qhov yog "pas luam yeeb tar", ib txheej ntawm cov xim av greasy uas yuav khaws cia rau hauv lub hnab luam yeeb thaum lub sijhawm haus luam yeeb. Phenols, fumaric acid thiab lwm yam tshuaj tiv thaiv kab mob qog noj ntshav kuj yog qhov ua rau muaj kev phom sij rau kev noj qab haus huv rau cov neeg haus luam yeeb hauv cov txheej txheem haus luam yeeb ntev. Txhua tus luam yeeb muaj txog 25mg ntawm luam yeeb tar. Ntxiv nrog rau cov teeb meem carcinogenic, cov luam yeeb tar kuj tseem ua rau cov hlab ntsha tawv.
E-luam yeeb txawv ntawm cov luam yeeb ib txwm muaj, uas yuav tsum muaj qhov kub thiab txias los hlawv nplooj ntawv luam yeeb. Nws evaporates cov e-kua los ntawm cov khoom siv hluav taws xob cua sov, thiab tso pa tawm ntau cov pa luam yeeb thaum lub sij hawm evaporation txheej txheem, yog li simulating cov nyhuv ntawm luam yeeb. Yog li ntawd, cov luam yeeb hauv hluav taws xob tsis hlawv thiab tsis tsim cov tshuaj phem. Yog li ntawd, los ntawm qhov no, cov luam yeeb hluav taws xob muaj kev noj qab haus huv zoo dua li luam yeeb. Tsis tas li ntawd, e-luam yeeb siv e-kua, uas tsis tsim ntau yam teeb meem xws li luam yeeb. Cov khoom ntawm e-kua feem ntau suav nrog pg, vg, nicotine, thiab flavors thiab fragrances. Cov nicotine muaj nyob rau hauv cov luam yeeb hluav taws xob muaj teeb meem rau tib neeg lub cev. Kev nqus tau mus ntev yuav ua rau muaj kev vam khom thiab ua rau muaj kev haus luam yeeb ntau ntxiv.
Kev phom sij ntawm cov luam yeeb hluav taws xob feem ntau yog lawv muaj nicotine, thiab kev nqus tau ntev yuav ua rau muaj kev vam khom, thiab kev quav tshuaj yuav nce ntxiv.
Qhov twg yog qhov tsim nyog rau lub cev, e-luam yeeb lossis luam yeeb? Piv nrog rau cov luam yeeb ib txwm siv, cov luam yeeb hluav taws xob tsis muaj cov txheej txheem combustion, yog li lawv tsis muaj cov tar thiab carbon monoxide uas tsim los ntawm kev sib txuas tsis tiav ntawm cov luam yeeb, uas tsis tshua muaj kev phom sij rau lub cev thiab ua rau cov khoom txo qis. Txawm li cas los xij, qhov teeb meem qis ntawm e-luam yeeb tsis txhais hais tias nws muaj kev nyab xeeb kiag li. Txij li thaum cov kua e-kua muaj cov tshuaj nicotine, cov menyuam yaus thiab cov neeg tsis haus luam yeeb yuav tsum nyob deb, thiab cov neeg siv uas twb haus luam yeeb thiab haus luam yeeb, rau koj txoj kev noj qab haus huv, thiab haus luam yeeb yuav tsum tau txiav tawm sai li sai tau. Yog tias cov neeg siv xav tias nws nyuaj heev kom txiav luam yeeb, lawv yuav tsum tso tseg cov luam yeeb ib txwm muaj thiab hloov mus rau cov luam yeeb hluav taws xob sai li sai tau.
