Topic: water purifiers

How Does Reverse Osmosis Water Filter Work?

Water is a basic need for every living organism, and the quality of the water we drink is crucial to our health. Unfortunately, not all water sources are safe for consumption due to various contaminants such as bacteria, viruses, chemicals, and heavy metals. One of the most effective ways to purify water is by using reverse osmosis water filters. In this article, we will discuss how reverse osmosis water filters work and their benefits.

Reverse osmosis (RO) is a water filtration process that removes impurities from water by applying pressure to it. The pressure forces the water through a semi-permeable membrane that blocks most of the contaminants, allowing only pure water molecules to pass through.

The reverse osmosis process starts with a pre-filtration stage that removes larger particles such as sand, sediment, and rust from the water. This step is necessary to protect the RO membrane from damage and prolong its lifespan. Some reverse osmosis filters use activated carbon filters at this stage to remove chlorine, organic compounds, and odors from the water.

After the pre-filtration stage, the water is pressurized using a pump and forced through the RO membrane. The RO membrane is made of a thin film composite (TFC) or a cellulose triacetate (CTA) membrane. The TFC membrane is more common and effective in removing contaminants compared to CTA.

The RO membrane has microscopic pores that are only 0.0001 microns in size, which is smaller than most contaminants in water. As the water passes through the membrane, the contaminants such as dissolved solids, bacteria, viruses, and heavy metals are trapped and flushed away. Only pure water molecules pass through the membrane and collect in a storage tank.

The reverse osmosis system comes with a post-filtration stage that adds a final polishing touch to the water. The post-filtration stage uses activated carbon filters to remove any remaining tastes or odors that may have passed through the RO membrane.

The purified water stored in the tank is ready for consumption, and it is safe for drinking, cooking, and other household purposes. The reverse osmosis system can produce 50 to 90 gallons of purified water per day, depending on the size and capacity of the system.

Benefits of Reverse Osmosis Water Filter

Removes Contaminants: Reverse osmosis water filters remove up to 99% of contaminants, including bacteria, viruses, chemicals, and heavy metals. This makes the water safe for consumption and protects you from waterborne diseases and illnesses.

Improved Taste and Odor: The reverse osmosis process removes the unpleasant tastes and odors from the water, making it more enjoyable to drink and cook with.

Saves Money: Investing in a reverse osmosis system can save you money in the long run as you won't have to buy bottled water or replace your appliances frequently due to the mineral buildup caused by hard water.

Eco-Friendly: Using a reverse osmosis system reduces the amount of plastic waste generated by bottled water, making it an eco-friendly option.

Easy to Maintain: Reverse osmosis systems are easy to maintain and require minimal upkeep. The pre-filters and post-filters need to be changed every 6 to 12 months, depending on the usage and water quality.


Reverse osmosis water filters are an effective way to purify water and make it safe for consumption. The process removes up to 99% of contaminants, including bacteria, viruses, chemicals, and heavy metals, leaving only pure water molecules. Investing in a reverse osmosis system has numerous benefits, including improved taste and odor, saving money, being eco-friendly, and easy to maintain. Ensure that you choose reliable and high-quality water purifiers for you and your family to use. You can these buy water purifiers at:


Topics: water purifiers