Method and aerosol particle collection device, a selective collection based on the particle size

The invention relates to a method and a particle collection device may be present in an aerosol. The invention consists of an electrostatic collection of all particles present in an aerosol, but with a decoupling mechanisms of a part of charge of the particles by diffusion of unipolar ions for charging and collecting the finer particles, and secondly charging electric field with corona for charging and collecting the larger particles to a different area of ​​the fine particle collection area. It also relates to the use of such a device as an ionization chamber or for the evaluation of workers or consumers to nanoparticles.