Now the blue mist really has me intrigued. Wish you lived closer, I would certainly love to be present during these. It certainly fires up the scientific curiosity in me while at the same time sparking that quest for the unknown in the paranormal background.
Is the blue mist radiant, or simply reflective? In other words in a total lights out situation can you see the mist radiating energy? Or does it simply reflect blue light. A blue tint would indicate low frequency absorption, and high frequency reflectivity. In which case I would have thought that the IR would still yield a picture. If the camera you are using is full spectrum I would be interested to see a full color image with true white light source.
What I would really love to try is to take a Schlieren Photograph of one of your events. Schieren photography is a practice of using multiple photographic paths and manipulating the light in such a way that it allows you to see the air turbulence patterns.
This is an example of someone coughing in a Schlieren photograph. It would be interesting to see how that mist forms and the turbulence patterns it creates.