The Diffusion Hazer (DF-50) is a patented machine utilizing a triple filtered system that breaks down the Diffusion Fluid (food grade mineral oil blend) to a uniform 1 micron sized droplet. This is the best most uniform haze you can get from any machine. Comes complete with Road case that the machine can run from inside so you dont even need to take it out of the case! Run time is generally 35hrs per 1/2 gallon with a 3hr hang time (stays in the air in a non circualed room)