1.   It is dangerous to inhale ammonia fumes.

2.   He also produced a white handkerchief with invisible ink, which over ammonia fumes revealed key names and addresses.

3.   It reeks of ammonia fumes, and the floor is coated with bat feces, six feet deep in some places.

4.   Civil defense workers distributed milk as an antidote to those who had been exposed to the ammonia fumes.

5.   Exposure to ammonia fumes can cause anything from eye irritation to death, depending on the concentration.