The BW-WDT550S nuclear biological decontamination device is mainly used for immediate decontamination of nuclear radiation contaminated personnel. It uses a water pump to pressurize and spray the decontamination solution, and uses a fan to generate negative pressure suction to suck back the decontamination solution sprayed on the skin or object surface, achieving the recovery of decontamination waste liquid, preventing the flow, dripping, and splashing of decontamination waste liquid, and avoiding the harm of decontamination waste liquid to medical personnel and the pollution of the working environment....