What do you think the Mist in this video is?

[mizuzu]

Saw this video on Youtube thought it was really cool. What do you think it is? I am a sceptic

I suggest they get the building services contractor back in. There's either a dew point issue, or feedback from an extract system, or a humidity/temperature control issue.

Someone running riot with a smoke machine.

Could be my DS/ baking. I often have a kitchen that looks like that.