SYMPTOMS OF EXPOSURE Inhalation: Asphyxiant. Before suffocation could occur, the lower flammability limit of hydrogen in air would be exceeded possibly causing both an oxygen-efficient and explosive atmosphere. Exposure to moderate concentrations may cause dizziness, headache, nausea and unconsciousness. Exposure to atmospheres containing 8-10% or less oxygen will quickly bring about unconsciousness without warning leaving individuals unable to protect themselves. Lack of sufficient oxygen may cause serious injury or death Symptoms: Exposure to an oxygen-deficient atmosphere(<19.5%) may cause dizziness, drowsiness, nausea, vomiting, excess salivation, diminished mental alertness, loss of consciousness, and death. |
