Fog making fluid

[Mk]

http://www.exploratoriumstore.com/fogblaster
"Comes with special cherry-scented 'fog-making fluid.'"
What is the fog fluid made of? Oil or something?

[C12_805]

Actually there's 2 types, water-based and oil-based. The oil base contains paraffin is more widely used because it lasts longer. :cool:

[Mk]

It vaporizes the oil?