PARTICLE SIZE CHARTour lives every day and this chart gives a variety of particle sizes to compare with. . fine particles, a filter is important in helping keep the air clean. 0.001. 0.05.particle size wk13918,Particle size - WikipediaParticle size is a notion introduced for comparing dimensions of solid particles (flecks), liquid particles (droplets), or gaseous particles (bubbles). The notion of.