OneDios Tech

Different Types of Water Purification Technologies

Access to clean and safe drinking water is fundamental for every household. Various water purification technologies have been developed to ensure that the water you and your family consume is free from contaminants and safe for consumption. Choosing the appropriate water purifier depends on the impurities in untreated water and the quality of purified water required. Typically, water with TDS levels below 200 ppm is considered safe for drinking. However, it is still recommended to purify it to remove harmful bacteria and viruses. 

In this blog, we will explore different types of water purifier technologies, detailing their unique features and listing the pros and cons of each. By understanding these technologies, you can make an informed decision when choosing the right water purifier for your home, with the assistance of OneDios for maintenance and servicing.

1. Reverse Osmosis (RO) Purifiers

Reverse Osmosis is a widely used water purification technology that relies on a semipermeable membrane to remove impurities and contaminants from water. If your water purifier service is due, download the “OneDios” app and generate an RO service request in a few clicks.  You can also buy the extended warranty and AMCs for all water purifier brands like KentBlue StarHavells AO SMITH RO, LIVPURE RO, AQUA FRESH RO, EUREKA FORBES RO, etc. 

Here are the pros and cons:


  • Highly Effective: RO systems can remove many impurities, including heavy metals, chemicals, and microorganisms.
  • Improved Taste and Odor: They enhance the taste and odour of water by removing dissolved solids.
  • Suitable for High TDS Water: RO purifiers effectively treat water with high Total Dissolved Solids (TDS) levels.


  • Wasteful: RO systems produce significant wastewater during the purification process.
  • Regular Maintenance: The membrane and filters require periodic replacement, incurring maintenance costs.
  • Initial Investment: Installation and purchase costs can be relatively high.

2.UV (Ultraviolet) Purifiers

UV water purifiers use ultraviolet light to disinfect water by destroying the DNA of microorganisms. It is capable of removing 99.99% of harmful organisms from the water.  Here are the pros and cons:


    • Effective Disinfection: UV purifiers eliminate bacteria, viruses, and parasites.
    • No Chemicals: They do not use chemicals, ensuring that water taste, odour, and minerals remain unchanged.


  • Low Maintenance: Minimal maintenance is required to replace the UV lamp. Download the OneDios app and book your water purifier service for regular cleaning and service of your water purifier.



  • Limited to Disinfection: UV purifiers do not remove non-living contaminants like heavy metals or chemicals.
  • Electricity Dependence: These purifiers require a power source, making them less suitable for areas with frequent power outages.
  • Pre-filtration Needed: For turbid or cloudy water, pre-filtration may be required to ensure effective UV disinfection.

3.Activated Carbon Purifiers

Activated carbon purifiers use activated carbon filters to adsorb impurities and contaminants from water. Here are the pros and cons:


    • Chemical Reduction: They effectively remove chlorine, organic compounds, and some chemicals, improving taste and odour.
    • Energy Efficient: Activated carbon purifiers do not require electricity to operate.


  • Easy Installation: These systems are typically easy to install and maintain. If you think your water purifier isn’t working correctly or want to schedule a routine check-up or cleaning, download the OneDios app and book your water purifier service in 6 clicks. 



  • Limited Contaminant Removal: They may not effectively remove minerals, heavy metals, or microorganisms.
  • Regular Filter Replacement: Filters need periodic replacement, incurring maintenance costs.
  • Not Suitable for High TDS Water: They may not be ideal for water with high TDS levels.

4.Ion Exchange Purifiers

Ion exchange purifiers use resin beads to exchange ions, removing specific contaminants from water. By uploading a picture, you can now use the OneDios app to register your product and digitally keep all your documents, like invoices and warranty cards.

Here are the pros and cons:


  • Effective for Hard Water: They are excellent at softening hard water by removing calcium and magnesium ions.
  • Improved Taste: Ion exchange purifiers can enhance the taste of water by removing minerals.
  • No Wastewater: Unlike RO systems, they do not produce wastewater.


  • Limited Contaminant Removal: They may not remove all impurities or microorganisms.
  • Salt Usage: Some ion exchange systems require salt pellets to be periodically replenished.
  • Not Suitable for All Contaminants: They may not be effective against chemical contaminants or certain heavy metals.

RO water purifiers are best suited for hard water with high TDS levels. It improves the taste, removes toxic impurities, kills and filters bacteria and works well on muddy water. The RO water purifier is the best type of water purifier available in India for drinking water.

UV water purifiers are ideal for purifying tap and municipal water. It works best on water with low TDS levels. It cannot remove dead bacteria and dissolved salts and purify muddy water. OneDios app makes it simple for the consumer to avail of the post-sales services without difficulties. 

RO+UV+UF water purifiers have three types of water purification processes in one water purifier. A water purifier with only one technology does not work for places with inferior water quality. It would be best to have purifiers with two or more technologies together.


Selecting the right water purifier technology for your home depends on various factors, including the quality of your water source, the specific contaminants present, and your budget. Regular maintenance and timely filter replacements are essential to ensure the continued effectiveness of your chosen purification system. If you require assistance with maintaining or servicing your water purifier, OneDios is a reliable service platform that can support various home appliances and systems. OneDios is a one-stop shop for all your water purifier-related service, complaints, repair, and extended warranty requests. OneDios also keeps track of your current water purifier service and the replacement of any part. At OneDios, you can also schedule the next water purifier service in advance.

Safe and clean drinking water is vital to maintaining your family’s health and well-being, so choose wisely to safeguard your water supply.


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