The HVAC system for nuclear facilities is designed to provide a safe and comfortable environment for workers, visitors and materials in the facility. This system must be designed and operated to ensure that it does not introduce any potential radiation hazards into the nuclear environment. The HVAC system must be designed to maintain an appropriate temperature, humidity and air quality, while also controlling the spread of any airborne contaminants. The HVAC system must be designed to maintain the required ventilation rate for the facility. This is important as it ensures that any radioactive materials present in the facility are not allowed to accumulate and that the air in the facility is constantly being renewed, reducing the risk of radiation exposure. In addition, the ventilation rate must be sufficient to remove any airborne contaminants present in the facility. The HVAC system must also be designed to ensure that any radioactive materials present in the facility are properly collected, stored, and disposed of in accordance with applicable regulations. This includes the installation of special filters and scrubbers to prevent any radioactive particles from entering the air. Finally, the HVAC system must be designed to provide a healthy and safe working environment for workers in the facility. To this end, the HVAC system must provide adequate ventilation and temperature control, while also controlling humidity levels and air quality. In addition, the HVAC system must be designed to minimize the risk of fire or explosion.