Sodium hypochlorite is an acidic solvent, and inhalation of sodium hypochlorite can cause severe burns and corrosive effects on the skin mucous membranes and respiratory tract. Such as mild poisoning will appear breathing difficulties, nasal mucous membrane irritation, cough, cough sputum, respiratory weakness and other symptoms. Moderate inhalation of sodium hypochlorite may cause severe respiratory distress, cyanosis, nausea and vomiting, acid reflux and heartburn, severe abdominal pain, and colic around the umbilicus. Severe inhalation of sodium hypochlorite poisoning history, both the inability to breathe, respiratory depression, cyanosis, accompanied by perforation of the gastrointestinal mucosa and respiratory tract and digestive tract mucosa, and even vomiting blood and hemoptysis occurs, at this time the immediate need for hospital care.