燃やす
nicotine
additives
air
cancer
carcinogenic
chemistry
cigar
cigarette
cigarillo
dependency
dirty
drug
effect
fire
fog
fragrance
harmful
health
illness
industry
inhale
life expectancy
lighter
lung
lung cancer
passive smoking
pipe
pollutant
pollution
psychology
risk
shisha
skin
smoke
smoking
steam
tobacco
unhealthy
warnings
water whistle
withdrawal
world health organization
wrinkles