The respirators in the first picture are like my BioMarine Industries full face respirator.
Just a note on the above picture: This picture has been all over the internet as one of those "What's wrong with this picture?" The real story behind this picture is quite a bit different. The gentleman in the shorts is one of the top Hazmat trainers in the US. This picture was taken during a training exercise in one of the Carolinas (I am pretty sure it was South Carolina).
This was a picture of a teacher with his students doing hands on training. There was never real hazards present. This picture is a great training aid for PPE. I am sure that at one point or another, every safety trainer has used it. I have even used it.
The best trainers know the real story behind this picture. When ever I use this pic, after the lesson has been learned, I tell my class the real story behind it.