Which type of filter system is known for removing the smallest micron particles?

The diatomaceous earth (DE) filter system is known for its ability to remove the smallest micron particles from pool water. This is due to the unique structure of the filter medium. DE filters use fossilized diatoms, which are microscopic algae, to create a porous filter that traps fine particles down to 1-5 microns in size. This makes DE filters highly effective for achieving very clear water, as they can remove not only dirt and debris but also smaller contaminants that other filter types might miss. This level of filtration is particularly beneficial for swimming pools, where water clarity and quality are essential for safety and enjoyment.

In contrast, sand filters typically trap larger particles because sand grains have a higher size range (around 20-40 microns). Cartridge filters, while effective for many purposes, generally filter to a level of about 10-15 microns. Bag filters also capture particles but not as finely as DE filters, as they are often used for larger debris and may not have the same capability to filter out the smallest micron-sized particulates.