Combustible dust is a significant yet often poorly understood industrial hazard. NFPA published its first-ever standard related to combustible dust, and the hazard has continued to claim lives and destroy property in the 100-plus years since… NFPA Journal reported in a 2023 article. Less than a decade later, a similar series of dust explosions would occur at the Didion Milling facility in Wisconsin, killing five and injuring 14, highlighting the ongoing risk that combustible dust represents. …Simply put, combustible dusts are created by finely divided solids. …A study published by the Fire Protection Research Foundation (FPRF), the research affiliate of NFPA, found that dust collectors are where the majority of dust explosions occur. “The qualitative analyses showed that friction sparks and self-heating are the primary causes of ignition, whereas ineffective housekeeping and design problems of the dust collection system are the biggest contributing factors for the occurrence of the explosion events.”