In the process of nuclear power plant decommissioning, aerosols are generated and generally dispersed in the working environment. Radioactive isotopes tend to be incorporated into aerosols, which contribute to the dose to the workers during decontamination and dismantling processes and to the environment post-decommissioning. Several studies have demonstrated different aerodynamic size distributions of the radioisotopes being generated, the effect of internal dose based on different particle sizes, aerosol generation methods, aerosol deposition and dispersion criteria, etc., but very few studies have explored various modes of filtration systems of these radioisotopes. This paper evaluates an initial electrostatic precipitation-based aerosol capture system using a laboratory scale filter that has been tested under bounded conditions as a proof of concept. A scaled-up design is proposed in order to test decommissioning work environment conditions such as higher aerosol flow rate, source concentration, dust loading, and reentrainment issues.