What does the micron rating mean on a water filter cartridge?

A micron is one millionth of a meter or about 0.0000393 inches. The average

5 micro filter

Item number 33-036

thickness of a human hair is 100 microns. A filter cartridge with a 5 micron rating will remove all particles 5 microns or larger from the water. Five microns would be 0.0001965 inches in diameter. A 20 micron filter will filter particles of 0.0007864 inches or larger while allowing smaller particles to pass. For particles of rust, sand or dirt that are easy to see, a 10 or 20 micron filter would be appropriate. For very fine particles, choose the 5 micron filter. Use of a small micron filter when large particles are present will shorten the life of the cartridge.

Other valuable information can be found at the links below:

“A grain of sand is anywhere from 75 to 150 microns, so a 50 micron water filter should be good enough to handle your sediment issue.” – waterfilters.net/blog (3 of 10 posts about water filteration)
“Turbidity is an optical determination of water clarity 1. Turbid water will appear cloudy, murky, or otherwise colored, affecting the physical look of the water. Suspended solids and dissolved colored material reduce water clarity by creating an opaque, hazy or muddy appearance. Turbidity measurements are often used as an indicator of water quality based on clarity and estimated total suspended solids in water.” – fondriest.com
“We’re all made of more than 70% water. As our exposure to environmental pollutants increases, so does our need for filtered, healthy water. Your tap and bottled water can contain pollutants … “ – waterfiltercomparsions.com

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