The CONCEPT SMOKE QUICK DISPERSING SMOKE is a specific type of smoke fluid designed for use in smoke-generating systems, particularly the Spirit 900 smoke machine. It is a water-based fluid composed of water and glycol. The key characteristic of S/FLUID-B is its quick dispersal. This means that the smoke it produces is not persistent and dissipates quickly. This makes it suitable for specific applications where a short-duration smoke effect is needed, such as simulating the effect of steam. It is important to note that when switching between different types of smoke fluids (like Fluid A, B, or C), the Spirit 900 machine may need to be reprogrammed to the correct operating temperature for that specific fluid. Some units may not have this user-reprogrammable feature unless it was specified at the time of ordering.