What are Liquid Nitrogen effects and how do they work?
LN2 effects work by manipulating conditions of temperature, pressure, and humidity to create areas which hold more water vapor than they are allowed to under normal atmospheric conditions. This is the same type of atmospheric manipulation which leads to the natural formation of clouds, foggy days, and mist formation over ponds and other bodies of water. The difference in this case is that you are able to choose when and where your clouds will appear.