What You Should Know About RO And NF Filters

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The most commonly used water purifiers in India contain reverse osmosis filters. These have a reverse osmosis membrane that separates most impurities from water. However, there is another form of filter that acts similarly. This one is the NF filter.

An NF filter uses a nanofiltration membrane that separates impurities from water like RO purifiers. However, most people in India have little knowledge about these filters. One needs to know about these since this can help them to get better drinking water.

One can get such water by connecting the RO and NF filters. The resultant water will be devoid of most solid and chemical impurities. One can know about these filters on the internet.

For this, they can use keywords like RO service near me in Greater Noida, for example. This can help them find reliable sources to inform them about these filters.

What Is The Nano Filtration Filter?

The NF filter is a filter that uses the nanofiltration membrane. This membrane can remove most germs and impurities from water. However, these membranes can also remove stubborn chemical impurities as well.

These are the latest forms of filtration membranes. One can use these to remove impurities successfully without doing the same to essential minerals.

How Are Nano Filtration Filters Different From The RO Filters?

There are several ways nano filtration filters differ from those that use reverse osmosis membranes. First, reverse osmosis membranes filters can remove much smaller impurities than nanofiltration membranes.

The nanofiltration membranes can remove impurities having diameters up to 0.005 micrometres. However, reverse osmosis membranes can remove impurities having diameters up to 0.0001 micrometres.

Nanofiltration membranes are much more durable than reverse osmosis ones. These can remove poisonous chemical impurities such as pesticides and chlorine. These membranes can remove such impurities without getting damaged themselves.

However, this might not always be the case for reverse osmosis membranes. This is because such membranes can get damaged due to chlorine and certain poisonous chemicals. These can also get damaged due to certain kinds of bacteria. However, this is not the case for nanofiltration membranes.

Despite this, however, reverse osmosis membranes have much narrower pores than nanofiltration ones. As a result, these can remove more impurities than the latter ones. However, these can get damaged by hard water, which does not happen in the case of nanofiltration membranes.

The maintenance of both membranes is the same. A person needs to clean and ash the membranes every month. This can help one to remove all impurities that have accumulated on them.

One can search the internet by typing RO service near me in Greater Noida to know more about this. The time of replacement for these membranes might vary depending on their brand. However, one should replace both of these every six months.

Why Is A Combination Of NF And RO Filters Necessary?

Combining RO and NF filters is necessary to get high-quality drinking water. This is mainly because of the benefits offered by both filters.

The RO filters can remove a considerable number of impurities. Although this also happens in the case of NF filters, these can preserve essential minerals in the water. The NF filters can also deal with impurities that the RO filters cannot remove.

Therefore, connecting these two filters allows one to get water devoid of the most significant impurities. The water provided by a combination of these can contain lower rates of germs and harmful chemicals. The NF filters can also prevent the loss of healthy minerals from the water. Therefore, one should consider using purifiers that have both filters.

Importance Of Purifiers That Have RO And NF Filters

The latest water purifiers have many filtration systems apart from reverse osmosis membranes. These, of course, include the nanofiltration filters as well. The other filters present in these are the ultraviolet and ultrafiltration ones.

Due to a combination of these with pre and post-filters, the machines can provide the best quality drinking water. All these filters help to remove all types of impurities from water. The water from these has essential minerals and is highly alkaline too. These are also very durable and require less servicing.


The RO NF combination is essential in water purification. The rising efficiency of the latest filters from both groups further solidifies this fact. Therefore, most Indians should consider having purifiers containing both filters.

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