Human Vapor

The Human Vapor (ガス人間第一号 Gasu Ningen dai Ichi-gō?) is a gas kaiju created by Toho that appeaed in the 1960 film, The Human Vapor.

The Human Vapor
Mizuno was a former test pilot but retired after he somehow got infected and then confined to a sanitorium for a long time. He later became a librarian until Dr. Sano offered Mizuno to become a "test subject" for scientist's projects. However, the tests backfired and Mizuno became an indestructible vapor man and begins a life of crime.

Abilities
In the Human Vapor's gaseous form, the Human Vapor can wrap around people's heads and suffocate them. He can also disappear into air.