0 Cov khoom siv hnub ci hauv tsev feem ntau yog hais txog ib pob lossis lub kaw lus uas suav nrog cov hnub ci vaj huam sib luag thiab ntau yam khoom tsim los siv hauv tsev. Cov khoom siv no feem ntau muaj cov hnub ci vaj huam sib luag, tus tswj hwm, roj teeb rau lub zog cia, hloov pauv hloov hluav taws xob DC los ntawm cov vaj huam sib luag rau AC hluav taws xob siv hauv tsev, thiab qee zaum cov khoom siv xws li teeb lossis cov khoom siv me me uas tuaj yeem siv los ntawm lub hnub ci hluav taws xob.
Cov tshuab no zoo nyiam nyob rau hauv cov cheeb tsam uas cov kab hluav taws xob tsis tuaj yeem nkag tau yooj yim lossis txhim khu kev qha. Lawv muab cov kev daws teeb meem uas muaj zog thiab rov ua dua tshiab rau cov dej num xws li teeb pom kev zoo, kev them nyiaj rau cov khoom siv, siv cov khoom siv me me, thiab lwm yam. Tsis tas li ntawd, lawv ua pov thawj muaj txiaj ntsig zoo rau tsev neeg txhawm rau txo kev cia siab rau cov khoom siv hluav taws xob zoo ib yam thiab txo lawv cov pa roj carbon monoxide.
Cov khoom siv no tuaj yeem muaj ntau qhov ntau thiab tsawg, ua raws li cov kev xav tau ntawm tsev neeg sib txawv. Qee cov khoom siv me me yog tsim los rau cov teeb pom kev zoo thiab kev them nyiaj hauv xov tooj, thaum cov khoom loj dua tuaj yeem siv cov khoom siv tseem ceeb lossis ntau yam khoom siv.