燃やす
asbestos
breath
build
carbon monoxide
carpenter
cartoon
chemical
concept
danger
dangerous
emission
exhale
exposure
fire
fireplace
flames
gas
health and safety
home
house
idea
illustration
image
life threatening
lung cancer
lungs
man
mesothelioma
occupational health and hazard
person
poison
poisonous
pollution
radiation
radioactive
radon
rescue
respiratory
risk
safe
silent killer disease
smell
smoke
structure
system
toxic substance
walk
window
yard