As we have shared more and more content about ChengrongTimes ultrafiltration water filtration systems for entire home, we have gradually gained recognition from many online friends.
From time to time, we receive consultations and questions from them about ultrafiltration water filtration systems for entire home.
Recently, one friend asked ChengrongTimes:
“At a filtration rating of 0.01 micron, ultrafiltration membranes can intercept 99% bacteria and viruses in water. So why does ChengrongTimes still say that your ultrafiltration water filtration system for entire home does not claim to block bacteria in water, but only filters sediment, rust, colloids, and other suspended solids?”
The answer is simple, the cartridge material of ChengrongTimes ultrafiltration water filtration system for entire home is PVDF membrane.
The key point is that the filtration rating of ChengrongTimes PVDF ultrafiltration membrane cartridge is 0.1 micron, not the 0.01 micron commonly advertised by many other ultrafiltration water filter brands.
The truth is that ChengrongTimes PVDF ultrafiltration membrane cartridge has a filtration rating of 0.1 micron, not the 0.01 micron commonly advertised by many other ultrafiltration water filter brands.
At this filtration rating, ChengrongTimes water filtration system for entire house is mainly designed to remove sediment, rust, colloids, and other suspended solids in water, with a removal rate of up to 99.99%. As for bacteria in water, it may only intercept part of them, but it cannot be claimed as a reliable bacteria-removal water filtration system.
To make it easier for customers to understand the difference clearly, ChengrongTimes simply states that our water filtration system for entire home is not designed or claimed to block bacteria.
Many customers believe that as long as a whole house water filter uses an ultrafiltration membrane cartridge, its membrane material and filtration rating must be the same.
In fact, ultrafiltration membranes are not all the same. They can be made from different materials, and their filtration ratings can also vary significantly. Therefore, two products may both be called “ultrafiltration membranes,” but their actual filtration performance and bacteria-interception ability may be completely different.
Therefore, many brands in this industry use this information gap in their marketing. They promote different membrane materials within the broad category of ultrafiltration as if they were all high-precision ultrafiltration membranes.
In a broad sense, any membrane material with a filtration rating roughly between 0.1 micron and 0.01 micron can be classified as an ultrafiltration membrane.
However, if we look at ultrafiltration from the perspective of reliable bacteria interception, not all ultrafiltration membranes are the same. A 0.1-micron PVDF ultrafiltration membrane and a 0.01-micron PVC ultrafiltration membrane should not be treated as the same product. In ChengrongTimes’ view, only the 0.01-micron PVC ultrafiltration membrane can truly be regarded as a high-precision ultrafiltration membrane for bacteria interception.
This is the difference ChengrongTimes wants customers to understand clearly: not all ultrafiltration membranes are the same.
| Membrane Type | Filtration Rating | Main Use | Bacteria-Removal |
|---|
| PVDF Ultrafiltration Membrane | 0.1 micron | Removes sediment, rust, colloids, and suspended solids from turbid water | May intercept some bacteria |
| PVC Ultrafiltration Membrane | 0.01 micron | Higher-precision filtration for municipal tap water and stronger bacteria interception | Up to 99% bacteria removal |
For PVDF ultrafiltration water filtration systems, the real filtration rating is usually 0.1 micron, which is already effective for filtering sediment, rust, colloids, and other suspended solids, and it is enough to turn turbid water into crystal-clear water. But it is not enough for reliable bacteria removal.
In the Chinese water filtration system for entire home market, PVDF ultrafiltration membrane cartridges are widely used. However, many brands promote them as 0.01-micron ultrafiltration membranes, creating the impression that all ultrafiltration filters have the same high-precision bacteria-interception ability.
ChengrongTimes does not do this. We clearly state that our PVDF ultrafiltration membrane cartridge is 0.1 micron, because we believe honesty is more important than exaggerated marketing.
A 0.01-micron PVC ultrafiltration water filter can effectively intercept bacteria in water. Only when this type of membrane cartridge is used in a whole house water filtration system can we claim that it can also remove the bacteria and virus in the raw water.
Why Does ChengrongTimes Choose to Be Honest, While our peers tend to overstate their filtration ratings?
Because our goal is to become a global benchmark, we don’t wanna falsely mark or exaggerate our any product specifications.
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