Difference 1: RO water purifier can filter heavy metal elements
The ultrafiltration water purifier can remove rust, sediment, bacteria, viruses, residual chlorine, and abnormal odors in the water. On this basis, the reverse osmosis water purifier can further remove salt and heavy metals, so the water obtained by the RO water purifier is almost pure water. Why such a difference? Structurally, ultrafiltration water purifiers and reverse osmosis water purifiers are similar. They are all equipped with PP cotton filter elements, activated carbon filter elements and other coarse filter elements in pre-filtration. The difference is mainly reflected in the filtration capabilities of ultrafiltration membranes and reverse osmosis. The filtration precision of ultrafiltration membranes is about 0.1um-0.01um, while the filtration precision of reverse osmosis membranes can reach 0.0001um. Just like sieves of different pore sizes, sieves with smaller pore spacing naturally have higher filtration precision. The molecular diameter of salt and heavy metals is smaller than the pore size of the ultrafiltration filter element, but larger than the pore size of the RO filter element. Therefore, they can be filtered by the RO water purifier.
Difference 2: RO water purifiers require electricity.Ultrafiltration water purifiers can achieve pressure-free filtration in areas where the water pressure reaches the standard.
As for reverse osmosis water purifiers, due to their extremely small pore size and different osmotic pressures on both sides, additional pressure is required to achieve reverse movement against natural osmosis. The water pressure of general water sources is small, so RO water purifiers need a booster pump to work properly. Of course, most RO water purifiers have built-in booster pumps, so you don’t need to buy them. However, this also leads to many reverse osmosis pumps. The water purifier needs to be connected to a power source.
Difference 3: Ultrafiltration water purifier has larger water flow rateIf the water pressure is not enough, your RO water purifier will not even produce pure water. This is mainly due to its fine RO membrane, with such a small pore size, which will greatly reduce the water flow rate. The pore size of the ultrafiltration membrane is larger, and the water output is naturally larger.
Difference 4: RO water purifier produces waste waterSince some residual substances (such as calcium carbonate, calcium sulfate, silicon, etc.) may be deposited on the surface of the RO membrane during the filtration process, in order to prevent the RO membrane from clogging, the RO membrane needs to be continuously flushed with water. So you want to get pure, healthy water, you have to sacrifice a certain percentage of wastewater. When using ultrafiltration filters, they need to be flushed regularly.
Difference 5: The ultrafiltration filter element is more portableFor outdoor activities, portability must be something that needs to be considered. No one wants to screw a big guy out in the wild for outdoor activities. At this point, the ultrafiltration filter element has obvious advantages. Some ultrafiltration water purifiers on the market specially designed for outdoor use are very small, with most parts removed, making them easy to carry. Some only weigh 0.3 pounds. But for RO water purifiers, due to their need to be pressurized, they cannot be made very small due to their characteristics. Taking the ITEHIIL RO water purifier as an example, its weight is 13 pounds, so in terms of portability, the ultrafiltration filter element is more portable. .
Difference 6: different scope of applicationIf the water pollution in your area is serious, you can choose an RO water purifier. Its purification is very thorough, and its filtration accuracy is also very high. It can effectively remove rust, sediment, macromolecular organic matter, heavy metals, bacteria, viruses, etc. in the water.
If the water quality is not too bad, only using an ultrafiltration water purifier is enough. Ultrafiltration water purifiers can remove sediments, macromolecular organic matter, bacteria, viruses, etc. from the water.
It can be seen from this that both RO reverse osmosis water purifiers and ultrafiltration water purifiers have advantages and disadvantages. The most important thing when choosing a water purifier is that it meets your own needs.