PARTICLES: Just Because They Are Nearly Invisible, Doesn’t Mean They Don’t Matter
Air is seemingly empty to us because the human eye cannot see many of the particles floating around. Particles can be human skin scales, bacteria, viruses, soot, rust, pet dander, pollen grains, mold spores, car-tire particles and more. Particles can be smaller than .01 micron in size. A micron is one-millionth of a meter, and […]