| Filter classification |
MEMBRANE PORE SIZE |
Filter Object |
| Coarse filtration |
40-1000μm |
visible suspended matter, sand, impurities, etc |
| General filtration |
10-40μm |
invisible suspended matter, particles, impurities, etc |
| Microfiltration |
0.1-10μm |
bacteria, particles, impurities, etc |
| ULTRAFILTRATION |
0.001-0.1μm |
PROTEIN and other macromolecular material cut molecular weight (10,000-tens of thousands) |
| Reverse Osmosis |
< 0.001μm |
molecular weight of metal ions and non-polar Salts (30-10,000) |
| Nano filtration |
1-30nm |
cut molecular weight of polysaccharide, Amino acid, etc. (200-20000) |
