Water Purifier-RO+UV Water Filter at the Best Price!

Water PurifierWater Purifier

In recent years, people have become concerned about water impurities. Now they know the adverse effects of contaminated water on health. Hence, water purifiers are a popular home appliance in Bangladesh. 

There are different water filtering technologies available in the market. Among all the RO+UV water purifiers are the effective and efficient options. 

RO+UV water filter uses duplet technologies to purify water. These are reverse osmosis (RO) and ultraviolet (UV) filtration systems. The RO+UV water filter uses a multi-stage purification process. It removes impurities like bacteria, viruses, and dissolved salts. On one side, the RO membrane removes dissolved solids.  UV technology destroys microorganisms like bacteria and viruses. The use of these two technologies ensures safe, clean, and healthy water to drink.

Yes, you already gazed at our today’s session. It is to help you get the best water purifier for your family. You will find here some great features and functioning of RO+UV water filters. The discussion focused on the Unilever Pureit Water Filter. So let’s get started.

What is Meant By RO+UV Water Filter

The RO+UV water filter is a type of water purifier that uses two different technologies to purify water. The RO (Reverse Osmosis) technology removes dissolved solids and impurities. UV (Ultraviolet) technology kills bacteria and viruses. The RO technology uses a semipermeable membrane in its RO system.  UV (Ultraviolet) technology uses UV rays. 

RO+UV water filters combine these technologies. It ensures a more comprehensive purification process. The RO process removes impurities like lead, arsenic, and fluoride, while UV technology kills bacteria, viruses, and other harmful microorganisms. Thus it ensures safe, clean, contaminant-free water to drink. The RO membrane is the prime part of the water filter.

Best water filters have three to six extra stages of filtration. The three main steps of RO+UV water purifiers are:

Pre-RO Filtration- Pre-RO filtration comprises a Carbon Filter and a Sediment Filter. It is the very first step of the RO water purification system.

Sediment Filter(SF)- A sediment filter catches pollutant particles such as sand, dust, dirt, and rust from your water supply. It increases the lifespan of the Carbon Filter.

Carbon Filter- This is the second step of the filtering system that removes dissolved particles like oil, chlorine, odor, and color. It also extracts pesticides and organic chemicals. 

UV Light- UV light sterilizes the microbes in the water.  UV radiation kills different infectious germs by destroying the genetic core. It kills 99.99 percent of harmful germs from the water. 
Post-RO Filtration- The Post-RO-filtration system consists of an ultraviolet filter, a post-RO carbon filter, and a membrane. It ensures the water is purified in several stages and is safe to drink.

What Are the Benefits of Using a RO+ UV Water Purifier?

Water Purifier- Every Drop is Safe to Consume!Water Purifier- Every Drop is Safe to Consume!

RO+UV purification is beneficial in a country like Bangladesh. Because water-borne diseases such as cholera, typhoid, and hepatitis are prevalent here. The main benefit of a RO+UV water filter is its water purification quality. The water contains minerals and it is good for health. Additionally, RO+UV water filters improve the taste and odor of the water. 

So, make it safer for consumption.

Another benefit of using a RO+UV water filter is its cost-effectiveness in the long run. While the initial cost of purchasing a water filter may seem high, buying bottled water over time can be much higher. 

Furthermore, using a water filter reduces the environmental impact. It reduces plastic waste generated by bottled water consumption.

The use of the filter is also quite simple. First, the water line needs to connect to the inlet part of the filter. The water then goes through the purification process and is stored in a tank for use later. Last, pure water exerts through a tap or a spout.

Best RO+UV Water Purifier in Bangladesh:

Best Water PurifierBest Water Purifier

There are different water purifiers available in Bangladesh. Finding the safest and best one among them is difficult. Water filters also come in various models and sizes. We found Unilever's Pureit water purifier is the best of all, depending on the purification technology, price, and benefits. So let's dive into why Unilever Pureit is the best option. 

The most popular RO+UV water filters by Unilever are Unilever Marvella RO+UV and Unilever Ultima RO+UV.

Unilever Pureit Water Filter

Unilever Pureit water filter is the most popular in Bangladesh. Its RO+UV technology-based water filter ensures safe drinking water for home and office use. 

Unilever Pureit Water Filter uses an advanced water filtration system. Some of its notable features are as below:

Double Filter: Pureit Water Filter has a dual-stage filter system. The system ensures double protection against impurities and contaminants. This double-pass DPRO (Double Pass Reverse Osmosis) uses a second RO system to provide more pure water.

Water Saving: The water filter has a water-saving mode. It stops the filtration process when the tank is full.

RO Purified Water: Unilever Pureit Water Purify treats the water through an RO (Reverse Osmosis) process. RO removes dissolved impurities like arsenic, lead, and pesticides.

Advanced Stage Purification: Pureit Water Filter provides advanced-stage purification that eliminates harmful bacteria, viruses, and microorganisms.

Smart Mode: Smart mode helps to save energy by switching off the filtration process when the water tank is full.

Smart Power Mode: The intelligent power mode keeps the filter on standby mode when the tank is full. It saves water by avoiding overflow.

Power Rating: The water filter has a low power rating.  It makes the filter energy-efficient and cost-effective.

Material: The filter material is high-quality, food-grade engineering plastic. The Plastic is non-toxic and safe to use. It does not impart any smell in the water. This high-quality plastic is usually used to make top-quality refrigerators. 

Turbidity of Water: Pureit Water Filter removes turbidity in the input water. As a result, it ensures crystal and safe drinking water.

Remove Iron in Input Water: The filter removes excess iron from the input water. Iron can cause health problems and affect the taste of the water. Puerit removes 100% iron from the water.

Food Safe Guard: The water filter is certified as food safe. It does not release harmful chemicals into the water from it.

Plastic Grade: The plastic used in the water filter is of high-grade quality, ensuring durability and long-lasting use.

Dispense Water: The water filter is easy to use. It provides instant access to clean and purified water.

Unilever Pureit Water Filter is reliable and efficient. It is a sustainable solution for those looking for safe and clean drinking water. Its advanced features and high-quality materials made it a significant investment.

Two Most Popular RO+UV Unilever Pureit water filters

There are various brands and modes of water purifiers available in the market. But we will discuss two most popular RO+UV Unilever Pureit water filters.

1. Unilever Pureit Ultima RO+UV+MF

Unilever Pureit Ultima RO+UV+MFUnilever Pureit Ultima RO+UV+MF

Unilever Pureit Ultima Ro+UV+MF used modern technology to show the level of your water purity. It has a purity level indicator that can sense water quality up to 5000 times per second. 

It also has a digital display panel that shows water quality and Germkill Kit life.

Product Specifications

           Brand Name: Pureit

  • Water Flow Rate: 9-12 Ltr. Per Hour
  • Pump Type: 24V DC diaphragm pump 
  • Membrane Type: Thin Film Composite Spinal Wound
  • Recovery:  25%
  • TDS Reduction: 90% (min)
  • Pressure Rating: 10- 30 PSI
  • Power Rating: 60 W
  • Operating Voltage: 100- 240 V a.c. 50/60Hz (100- 300 V a.c 50/60Hz)
  • Length of Adapter: 1.5 Meters
  • Material of Construction: Food Grade, non- Toxic, Engineering Grade Plastic
  • Total Dissolved Solids: Upto 2000 mg/lit
  • Iron in Input Water: 0.3 mg/lit (max)
  • Total Hardness: 500 mg/lit
  • Turbidity of Input Water: 1 NTU (Max)


    Highlighted Features

    The water filter has some excellent features to look at. Following are the most prominent features of Unilever Pureit Ultima RO+UV+MF are:

    • -Advanced digital alarm system- It has two concentric circles to alert you 15 days before the end of the Germkill kit's life.
    • -100% RO and UV- 100% water passes through the RO and UV filtering system to provide pure and safe drinking water.
    • -TDS Modulator- enhances the taste of water by post-purification.
    • -RO protection Lock System- automatically stops the water flow when the germ kill kit life is over.
    • -Guided Alert System-The guided Alert system indicates any specific electrical fault.
    • -7 - stage purification- Converts up to TDS 2000 ppm hard water into sweet and soft water using the seven steps RO+UV technology.
    • -Compact Design- It has a 10-liter water storage capacity with a compact design.

2. Unilever Pureit Marvella Slim RO+UV Water Purifier

Unilever Pureit Marvella Slim RO+UV comes with a 7-stage advanced purification system. It consists of a mineral cartridge that provides pure water full of minerals like magnesium and calcium. All water in this purifier passes through the RO and provides 100% RO-purified water. The RO system extracts all toxic chemicals like mercury, and lead. 

Product Specifications

       Brand Name: Pureit

  • Weight: 7.3 kg
  • Flow Rate: Up to 20 liters/hour
  • Membrane Type: Thin-film composite spiral wound membrane
  • Filtering Stages: Pre-Sediment Filter, Pre-RO Carbon Filter, Mini Filter, Reverse Osmosis Membrane, Micro Filtration Membrane, UV and Post-RO Carbon Filter
  • % Recovery 5: 35%
  • Pump Type: Diaphragm pump, 24V DC
  • TDS Reduction: 90% (Min)
  • Input Voltage: 100 - 240 Vac; 50 Hz
  • Power Rating: 55 Watts 
  • Pressure Rating: 10-30 PSI7
  • Material of Construction: Food-safe, engineering-grade, non-toxic plastics
  • Total Hardness: 500 mg/lit (max.)
  • Length of Power Card: 1.5 meters
  • Total Dissolved Solids in Input Water: Upto 2000 mg/lit8
  • Iron in Input Water: 0.3 mg/lit (max.)9
  • Turbidity of Input Water: 1 NTU (max.)
  • GKK Life: 6000 Liters

Highlighted Features

Pureit Marvella also has some notable features to mention. The following are some of them:

  • -7 Stage Advance Purification Technology- The Pureit Marvella RO+UV water purifier completes seven stages of water purification. 
  • -100% Food Grade Plastic-The filter is of 100% safe and healthy food-grade plastic.
  • -The hi-Speed Purification system-it purifies up to 20 liters of water every two hours.
  • -USEPA Compliant-meets the high-level safety standards by cleaning 10 Cr bacteria and 1 Cr virus from 1L water.
  • -Compact Design– it has a compact design with 8 liters of water storage capacity.


Following are some of the most commonly asked questions on water purifiers.

  • What is the lifespan of a water purifier?

Answer: The lifetime of a water purifier depends on the received water quality and the amount of water consumed. In most cases, you may need to change the filtering membrane every 6-8 months. But the lifespan of a water purifying system is around 5 to 7 years.

  • What are the common problems with water purifiers?

Answer: The most common water purifier problems are water leakage, slow water output, noisy faucets, unusual smells, and unusual tastes. 

You may face that problem if it is at the end of its lifespan or if there is any manufacturing fault.

  • How often should I clean the water purifier?

Answer: You should clean the water purifier when you replace the filters. But the storage tank should be cleaned after a regular interval (once every month). 

  • What to know before buying a water purifier?

Answer: You must consider a few things before buying a water filter for your home. The most critical considerations are storage capacity, water pressure, water quality, budget, and maintenance. You may choose any purifiers from UV (ultraviolet), UF (ultraviolet), and RO(Reverse Osmosis) technology depending on the criteria.

  • Can we drink directly from a water purifier?

Answer: Any water purifier completes a broad function to purify the water. The filtration process includes demonization, distinction, reverse osmosis, and UV treatment. You can drink directly from the water filter after this process completes. 

  • Do water purifiers remove bacteria?

Answer: yes, reverse osmosis technology only removes harmful bacteria from the water. Other filtration systems are not effective at removing bacteria.

  • Does a water purifier remove germs?

Answer: Yes, but not all water purifiers. The UV water purifier system is designed to kill different germs and microorganisms in water.

  • Which technology is better for a water purifier?

Answer: Reverse Osmosis Technology is the laboratories' most popular and cost-effective water purification system. The RO technology removes all the impurities and makes the tap water safe to drink.

  • How much water waste is from the water purifier?

Answer: The RO water purifier uses around three liters to make one liter of purified water. So only 25% of the total supplied water is purified. And the other 75% of water becomes waste, which usually goes to the drainage system. 

  • How can we reuse wastewater from purifiers?

Answer: The wastewater from the water purifier is not for bathing and consumption.  But you can reuse it in several ways.

  • -You can use the water for mopping and cleaning purposes.
  • -You can water your garden wastewater.
  • -To wash utensils.
  • -To clean cars and washrooms.
  • -You can use it for water coolers. 
  • Which type of water purifier is best for health?

Answer: The Reverse Osmosis water purifier is best for health because it uses advanced water-purifying technology to make the water safe for drinking.


In conclusion, the Water Purifier-RO+UV Water Filter is a remarkable innovation that addresses the growing concern of water contamination and the need for safe and clean drinking water. This technology combines the benefits of Reverse Osmosis (RO) and Ultraviolet (UV) purification methods to effectively eliminate impurities and microorganisms, providing households with access to high-quality, potable water.

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