Originally Posted By: FlyingTexan
Can you please point to something that shows your window screen can FILTER 2 micron particles? Anywhere? It's not the same just because you say it is and my statement wasn't false because I made it simple and not a two page physics paper in legalese. In other words; give me a break.
All filters will filter almost any particle, it's not a sharp cutoff to the absolute particle size. My window screen will most certainly filter out 2-micron particles but at a very low efficiency.
Filtering means that out of the gross quantity of particles entering the media, some will not exit. How many is a function of the filter's efficiency.
All microGreen has said is that they filter down to 2 microns. My socks, my underwear and yes my window screens do too. The question is the efficiency which up until your new statement above has not been discussed by microGreen. My point and the point of others in this thread is that a micron rating without a corresponding efficiency is meaningless. Look up standard oil filter efficiencies vs. particle size and you will see that they all will filter even very small particles but at a greatly decreasing efficiency.
Can you please point to something that shows your window screen can FILTER 2 micron particles? Anywhere? It's not the same just because you say it is and my statement wasn't false because I made it simple and not a two page physics paper in legalese. In other words; give me a break.
All filters will filter almost any particle, it's not a sharp cutoff to the absolute particle size. My window screen will most certainly filter out 2-micron particles but at a very low efficiency.
Filtering means that out of the gross quantity of particles entering the media, some will not exit. How many is a function of the filter's efficiency.
All microGreen has said is that they filter down to 2 microns. My socks, my underwear and yes my window screens do too. The question is the efficiency which up until your new statement above has not been discussed by microGreen. My point and the point of others in this thread is that a micron rating without a corresponding efficiency is meaningless. Look up standard oil filter efficiencies vs. particle size and you will see that they all will filter even very small particles but at a greatly decreasing efficiency.