The substance irritates strongly the eyes and the respiratory tract. Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the respiratory tract , resulting in asthma-like reactions, reflex spasm of the larynx and respiratory arrest. Exposure may result in death. The effects may be delayed.
Medical observation is indicated.
Repeated or prolonged inhalation exposure may cause asthma. Depending on the degree of exposure, periodic medical examination is indicated, the symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.