Bacteria & amoebas are both smaller than dust mites.There are also atoms which everything you see & touch, even yourself are made up from.
mite
A Dust might is larger than a rhinovirus
Blood cells are much smaller than dust mites. A typical blood cell has a diameter of about 6-8 micrometers, while a dust mite can range in size from about 100 to 300 micrometers. Dust mites are visible to the naked eye, whereas blood cells can only be seen under a microscope.
At 250-300 microns(smaller than the period at the end of this sentence), dustmites are so small that bacteria and fungal hyphae can be a mouthful. We shed skin and hair, bacteria eat skin and hair,and mites devour bacteria. www4.ncsu.edu/~rrdunn/DustMiteArticle(Dunn).pdf
e
Many things can be smaller than a rock, such as a pebble, a grain of sand, or even a speck of dust.
2.5 of anything is generally smaller than 50 of the same thing.
A shooting star is a small piece of dust or rock that burns up in the atmosphere. It is significantly smaller than the Moon.
Well, Anything bigger than 180 but smaller than 360 .
Dust devils form in sunny weather while tornadoes require thunderstorms to form. Dust devils are much weaker and generally smaller than tornadoes as well.
Anything smaller than it.
Anything smaller than it.