The product is the NFPA 1994: Standard on Protective Ensembles for First Responders to CBRN, published by the National Fire Protection Association in 2018. This textbook is part of the Electrical Wiring Practice series and is written in English by the NFPA. It is designed for adult education and further education levels, covering advanced, intermediate, and technical topics related to protective ensembles for first responders to chemical, biological, radiological, and nuclear (CBRN) hazards. The textbook is in trade paperback format and serves as a valuable reference for those in the field of emergency response and protection.