AO Smith Bangladesh

Are you planning to buy a water purifier but feeling overwhelmed by the various types of filtration technologies available in the market? 

Don’t worry! In this article, we’ll explore different filtration technologies used in AO Smith water purifiers. AO Smith is a renowned brand that offers a range of water purifiers that cater to diverse needs and budgets. By understanding the types of water purifiers and their filtration mechanisms, you can make an informed decision about which one suits your requirements.

The most common filtration technologies used in AO Smith Water Purifiers include reverse osmosis (RO), ultraviolet (UV) purifiers, activated carbon filters, gravity filters, and ion exchange. RO technology uses pressure to filter out impurities from water through a semi-permeable membrane. UV purification destroys harmful microorganisms like bacteria and viruses using ultraviolet rays.

Importance of Water Purification

Before diving into the different types of water purifiers, let’s understand why water purification is important. Contaminants such as bacteria, viruses, chemicals, heavy metals, and other pollutants can be present in untreated water. Consuming water with these impurities can lead to various health issues. Water purifiers eliminate these contaminants, ensuring that the water is safe and healthy for consumption.

Types of Water Purifiers

There are several types of water purifiers available in the market, each utilizing specific filtration technologies. Let’s explore the most common types used in AO Smith water purifiers:

Reverse Osmosis (RO) Purifiers

RO purifiers use a semi-permeable membrane to remove dissolved impurities, such as heavy metals, salts, and other contaminants. This technology effectively filters out impurities, ensuring clean and pure drinking water.

Ultraviolet (UV) Purifiers

UV purifiers use ultraviolet rays to deactivate bacteria, viruses, and other microorganisms present in the water. It provides an additional layer of protection against microbial contamination, making the water safe for consumption.

Activated Carbon Filters

Activated carbon filters are widely used in water purifiers to remove organic compounds, chlorine, pesticides, and unpleasant odors and tastes. This type of filtration is effective in improving the overall taste and odor of the water.

Gravity Filters

Gravity filters work on the principle of gravity and do not require electricity. They typically use ceramic or carbon filters to remove impurities. Gravity filters are easy to use and are suitable for areas with limited or no electricity supply.

Ion Exchange Purifiers

Ion exchange purifiers employ resin beads to remove dissolved salts, such as calcium and magnesium, from the water. This technology is effective in addressing water hardness issues and improving the taste of the water.

Benefits of Each Filtration Technology

Here’s a user-friendly table showcasing the benefits of each filtration technology used in AO Smith water purifiers:

Filtration TechnologyBenefits
Reverse osmosis (RO)Removes dissolved impurities like arsenic, fluoride, lead, and nitrates, as well as heavy metals, bacteria, and viruses.
Ultraviolet (UV) purifiersDestroys harmful viruses and bacteria without altering the taste or odor of the water.
Activated carbon filtersReduces chlorine, sediment, volatile organic compounds (VOCs), and bad tastes and odors.
Gravity filtersFilters out bacteria, viruses, and parasites using a ceramic or carbon filter, and does not require electricity.
Ion exchangeRemoves calcium and magnesium ions, which cause hard water, and replaces them with sodium ions, making the water softer and more palatable.

Please note that these benefits are general and may vary based on the specific model and features of AO Smith water purifiers.

Factors to Consider When Choosing a Water Purifier

here are the most important points to consider when choosing a water purifier:

  1. Water quality: Consider the source and quality of the water you want to purify, as well as any contaminants or impurities that may be present.
  2. Filtration technology: Choose a purifier that utilizes a filtration technology suitable for the contaminants present in your water.
  3. Capacity: Consider the amount of water you need to purify on a daily basis and choose a purifier with a suitable capacity.
  4. Maintenance and replacement: Consider the cost and frequency of maintenance, as well as the lifespan and cost of replacement filters.
  5. Certifications: Look for purifiers that have been certified by reputable organizations like NSF International or the Water Quality Association.
  6. Budget: Consider your budget and choose a purifier that meets your needs while staying within your budget.

By considering these factors, you can make an informed decision and select a water purifier that best suits your needs and provides clean and safe drinking water.

Maintenance and Care Tips

section is important for ensuring the longevity and optimal performance of your water purifier. However, some of the most crucial tips include:

  1. Regularly change the filters: Most water purifiers require regular filter changes to maintain their effectiveness. Check the manufacturer’s recommendations for how often you should change your filters and stick to that schedule.
  2. Clean the unit regularly: Regular cleaning of the water purifier can prevent the buildup of dirt, debris, and bacteria that can affect the quality of the water.
  3. Use the right cleaning products: When cleaning your water purifier, use only the cleaning products recommended by the manufacturer. Using the wrong products can damage the unit and reduce its effectiveness.
  4. Monitor the water quality: Even with a water purifier, it’s important to monitor the quality of your water. Test the water periodically to ensure that the purifier is working effectively and that the water is safe to drink.
  5. Address issues promptly: If you notice any issues with the performance of your water purifier, address them promptly. Delaying repairs or maintenance can lead to bigger problems down the line.


Investing in a reliable water purifier is vital for ensuring the safety and quality of the water we consume. AO Smith water purifiers, with their diverse filtration technologies, provide effective solutions for different water purification needs. By understanding the various types of water purifiers available and their benefits, you can make an informed decision when selecting a purifier that suits your requirements.


Are AO Smith water purifiers suitable for all types of water sources?

Yes, AO Smith water purifiers are designed to handle various types of water sources, including tap water, borewell water, and municipal water supplies.

How often should I replace the filters in my AO Smith water purifier?

The frequency of filter replacement depends on the model and water quality. AO Smith provides guidelines on when to replace the filters for optimal performance.

Can AO Smith water purifiers improve the taste of water?

Yes, AO Smith water purifiers effectively remove unpleasant odors and taste-causing compounds, resulting in improved taste and odor of the water.

Are AO Smith water purifiers energy-efficient?

Yes, AO Smith water purifiers are designed to be energy-efficient, ensuring minimal power consumption during operation.

How long do AO Smith water purifiers last?

With proper maintenance and care, AO Smith water purifiers can last for many years, providing you with clean and safe drinking water.

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