Fluorescent powder leak detection test is conducted to detect dust leaks, cracks, tears or holes within the Bag house system. This is carried out by the use of Fluorescent powder, a non-toxic tracer which is reactant to ultra-violet rays. This powder is light weight and glows under the monochromatic light. When it is injected into the inlet duct, it follows the path of least resistance identifying any leaking areas on the clean air side. Monochromatic light lamp is then used to locate the exact pin point of leak. Fluorescent leak detection powder is being offered by IFF in various colours.