An article to understand the difference between microfiltration, ultrafiltration, nanofiltration, and reverse osmosis

Guide

Microfiltration intercepts sediment bloodworms, ultrafiltration retains minerals but retains heavy metals; Nanofiltration is scarce and hard to find, and reverse osmosis purifies pure water to the extreme. The filtration accuracy of the water purifier determines the quality of the water, from coarse screening to atomic-level purification, reverse osmosis ends all impurities with an accuracy of 0.0001μm, and between the direct drinking of pure water and mineral selection, your healthy choice is hidden in the pore size of the filter membrane.

Advantages of wet reverse osmosis membrane elements:Pure dry goods → knowledge of water purifier equipment, classified according to the accuracy of the filter pore size of the filter membrane and the ability to remove dissolved ions.

1. Microfiltration Water Purifier (MF)

The filtration accuracy is between 0.1μm-10μm, which can filter large particles such as sediment, rust, bloodworms, algae and other large particles in the water, but it is only a coarse filtration and cannot play a role in filtering bacteria and viruses.

2. Ultrafiltration Water Purifier (UF)

The filtration accuracy is between 0.01-0.1μm, which can filter out harmful substances such as rust, sediment, suspended solids, colloids, bacteria, and macromolecular organic matter in the water, and can retain some mineral elements that are beneficial to the human body.

Ultrafiltrated water = H20 + minerals + heavy metal ions

3. Nanofiltration Water Purifier (NF)

The filtration accuracy lies between ultrafiltration and reverse osmosis, which can remove the problem of heavy metal ions. There are relatively few on the market at present.

Nanofiltration filtered water = H20 + minerals

4. Reverse Osmosis Water Purifier (RO1)

Filtration accuracy: 0.1 nanometer (0.0001 μm), one-second of the size of a hair strand, reverse osmosis is the highest filtration accuracy inside, which can filter almost all impurities in the water, including bacteria, viruses, heavy metals, antibiotics, etc.

The water filtered by reverse osmosis is called pure water = H20