100 nanometres

To help compare different orders of magnitude this page lists lengths between 10&minus;7 and 10&minus;6 m (100 nm and 1 µm).

Distances shorter than 100 nm Distances longer than 1 µm
 * 100 nm &mdash; greatest particle size that can fit through a surgical mask
 * 120 nm &mdash; greatest particle size that can fit through a ULPA filter
 * 125 nm &mdash; standard depth of pits on compact discs (width: 500 nm, length: 850 nm to 3.5 µm)
 * 180 nm &mdash; typical length of the rabies virus
 * 200 nm &mdash; typical size of a Mycoplasma bacterium, among the smallest bacteria
 * 280 nm &mdash; near ultraviolet wavelength
 * 300 nm &mdash; greatest particle size that can fit through a HEPA filter
 * 380-420 nm &mdash; wavelength of violet light (see color and optical spectrum)
 * 420-440 nm &mdash; wavelength of indigo light
 * 440-500 nm &mdash; wavelength of blue light
 * 500-520 nm &mdash; wavelength of cyan light
 * 520-565 nm &mdash; wavelength of green light
 * 565-590 nm &mdash; wavelength of yellow light
 * 590-625 nm &mdash; wavelength of orange light
 * 625-740 nm &mdash; wavelength of red light