🧪💨🤢

#toxic fumes #inhalation hazard #chemical gas #hazardous vapor #noxious gas #respiratory hazard

☠️🧪😷

#toxic gas #poison gas #chemical gas #hazardous material #gas mask #chemical weapon

🧪💨⚠️

#hydrogen sulfide #chemical gas #laboratory safety #toxic gas warning #h2s chemical #hazardous material