Question: can you see 1 micron?
Answer: Particle Sizes One micron is equal to one-millionth of a meter, or 1/26,000 of an inch. On average, the human eye cannot see particles that are smaller than 50 to 60 microns. ... To give you a better idea of just how small a micron is, consider this: the diameter of a human hair is 80 to 100 microns in size.