A micron is 1/1000 of a millimeter. That works out to be somewhere
around 0.000039 inch. Consequently, since a micron is a measure of
length, 25 microns is bigger than 20 microns.
Dick Fletcher
P15 #667
HTM wrote:
>
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> West Wight Potter Website at URL
> http://www.lesbois.com/wwpotter/
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> Talking filters now......Does anyone know what a "micron" is?
> is 25 microns bigger or smaller than 20 microns?