Particle emissions and respiratory exposure to hazardous chemical substances associated with binder jetting additive manufacturing utilizing poly methyl methacrylate

•Binder jetting additive manufacturing involves different levels of inhalation risks•Respiratory exposure to PMMA has been linked to acute adverse health effects•Powders used for additive manufacturing are often recycled•Personal exposure monitoring results indicated inhalable particles•Additive manufacturing facilities should conduct physical and chemical characterisation analyses for the feedstock powders•Information and training are important for additive manufacturing operators