Action of ammoniac gas cross-eye, larynx, the upper respiratory tract is quick, excitant strong, contact low density ammonia for long, can cause oedema of laryngitis, cracked, lung to wait.

• 氨气对眼、喉、上呼吸道作用快，刺激性强，长时间接触低浓度氨，能引起喉炎、声音嘶哑、肺水肿等。