💨🌫️🌬️

#vapor #gaseous state #invisible gas

👻🫁²²²

#radon #invisible gas #lung cancer #health hazard #radioactive gas #rn-222 #indoor air quality

Rn☢️🌬️

#radon #element rn #invisible gas #noble gas

🕳️💨😵

#ground gas #gas vent #asphyxiation hazard #CO2 pool #carbon dioxide danger #suffocation risk #invisible gas