A fire marshal, in the United States and Canada, is often a member of a fire department but may be part of a building department or a separate department altogether.
An average human red blood cell is approximately 5 microns in diameter. The average diameter of human hair is roughly 0.0035 inches in diameter, which is equivalent to 75 microns. The abbreviation micron was initially used to distinguish the units of a tool used to measure small distances, also called a micrometer.
The answer is 0.001. We assume you are converting between micron and nanometre. You can view more details on each measurement unit: micron or nanometers. The SI base unit for length is the metre. 1 metre is equal to 1000000 micron, or 1000000000 nanometers. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between microns and nanometres.