Most Penetrating Particle Size (1 of 2): Filtration Capture Mechanisms
In this two part series, we’ll explain why a filter's most penetrating particle size is neither the smallest nor the largest particle in a fluid (liquid or gas) stream. In part one of this video segment, we’ll be discussing five basic filtration capture mechanisms that are always acting on a particle as it attempts to follow an fluid stream through a filter media. Those mechanisms are sieving, inertial impaction, interception, diffusion, and electrostatic effects.
Can't YouTube from work (do the IT guys have you locked out)? No prob - download the movie file (low resolution) or link to the script! 
