With Velocity™, you can create precision atmosphere right when you need it! Fast Dissipating – 30-40 Second Hang Time Great Fluid for Photography, Film, Drama Departments, Steam Pipe Effects, Volcano Eruptions and all quick fog effects No Glycerin/Glycerol Added, Remains Clean, Dry, Odorless and Leaves Little to No Residue or Contamination, Non-irritating, Non-toxic, and Non-flammable Designed For Use With Any Water-Based Fog Machine – Optimized for machines with as little as 400 watts 100% American Made – Froggy’s Fog® only uses De-Ionized Water and pharmaceutical-grade chemicals, all Approved by the FDA.