A micron is 10,000 ths of a centimeter. It is a measure of the filtration capabilities.
There are only three true methods of water filtration known to man. De ionization (not consumable), Distillation not easily done), and Reverse Osmosis9can be done in a home. All other filtration methods are partial filtration methods such as pleated or micron filters.
Filtration can remove solid particles as small as 1 micron. Simply decanting, or allowing solids to settle - will not remove the smallest particles.
HEPA is stands for High eff ency particulate filters & its normally stops particles size more than 0.3micron & using for clean rooms . Micro filtration have higher filtration level with respect to HEPA around 5 micron .All filters are using on demand on area filtration level
cause 0.45 micron is REAL SMALL holes. real good filtration, but easy to clog.
1 micron > 0.5 micron
0.5 micron.
10 micron.
Ofcourse 23 micron is thicker than 11 micron.
90 micron.
2 MICRON
A 5 Micron is more fine then a 20 Micron, It means, if a particle has a thickness of 1 micron. only 5 numbers of particle can be passed through a 5 Micron filter at a time while 20 numbers of Particle can be passed through a 20 Micron filters. the 5 Micron is more efferent to the 20 Micron.
10 micron.