Aerosol penetration properties of an electret filter with submicron aerosols with various operating factors

The aim of this paper is to determine the effects of the use of an electret filter on aerosol penetration. Various factors such as particle size, aerosol charge state, face velocity, and relative humidity were examined to assess their effects on aerosol collection characteristics. The results presented demonstrate that the level of penetration through the electret filter increased with increasing face velocity and relative humidity but was not affected by the temperature and the aerosol charge appeared to exert the greatest influence on aerosol penetration.