By: Bio-Link Technical Team
RO purified water has long stood out among drinking water choices, yet as it has spread, so have misunderstandings and myths about it. This article digs into the common misconceptions about RO water and sets out accurate information to dispel them, helping everyone better understand what RO water has to offer.
Three big misconceptions about RO purified water
Misconception 1: worry over lost minerals
RO-filtered water is lower in minerals. Generally, the minerals the body needs each day come mainly from food rather than drinking water, but diets and health conditions vary — if you have particular concerns, consult a medical professional or qualified dietitian.
Misconception 2: the acidity question
Another common misconception is that RO-filtered water turns acidic and upsets the body's acid-alkaline balance. In fact, RO filtration does not make water acidic. Acidity or alkalinity is determined by the concentration of hydrogen ions (pH), and RO filtration mainly removes impurities and contaminants — it does not change the water's pH. RO-filtered water is generally neutral and has no negative effect on the body's acid-alkaline balance.
Misconception 3: changes in taste and mouthfeel
Some assume RO-filtered water loses its original taste because the process strips out impurities. In fact, RO filtration removes the components that cause off-flavours and impurities, leaving water cleaner and fresher-tasting. Any change is usually slight — most people can barely tell.

Five strengths of RO purified water:
An efficient purification process
RO filtration is a highly efficient water treatment technology. Water is forced through a semi-permeable membrane, which removes fine particles, impurities, bacteria, viruses and chemicals. That makes RO-filtered water an exceptionally clean choice for drinking.
Removing harmful substances
RO filtration effectively removes a range of harmful substances, including heavy metals, chlorine, fluoride and organic compounds. That supports healthier, safer drinking water and reduces exposure to these potential hazards.
Better taste and clarity
By removing impurities, RO filtration leaves water fresher-tasting and cleaner on the palate. That makes drinking more water easier — good news for staying properly hydrated.
Versatile uses
RO water is not just for drinking; it suits cooking, food preparation and preparing infant formula. Its high purity helps ingredients keep their original flavour without introducing unwanted contaminants.
Less bottled water to buy
With an RO system providing convenient, high-quality drinking water, there is no need to keep buying bottled water. That cuts single-use plastic consumption and lightens the environmental footprint.

Closing thoughts
Myths about RO water usually stem from misunderstanding the process and its effects. RO delivers efficient purification and high-quality, clean drinking water. Nor is there cause for worry over mineral loss or acidity — the quality and safety of RO-filtered water are well established scientifically. Understanding what RO water actually offers helps us make informed drinking-water choices for health and wellbeing.
Interested in a home-friendly Water Purifier or RO water dispenser, pick an option that fits your household's water habits, installation space and maintenance needs. Bio-Link's current home recommendations include:
- RO838: for households that want an under-sink RO filter in the kitchen, covering daily cooking and drinking needs.
- DT400: for households or small spaces that need a countertop hot-and-cold machine, with optional filtration as required.
For offices, schools, clinics or commercial premises needing a Office Water Dispenser, choose a model by daily headcount, installation position and maintenance arrangements. Bio-Link's current commercial recommendations include:
- ST1523: suited to medium and large offices, with higher capacity and RO filtration for shared pantries.
- ST9102: for schools, educational institutions or commercial premises with steady foot traffic.
- STC15: suited to small offices, clinics or studios with limited space — the body is just 36cm wide, for compact commercial installations.
Why choose Bio-Link?
Bio-Link was established in Hong Kong in 1997, providing consultation, installation and maintenance for filtration systems and hot-and-cold water dispensers, serving residential homes, offices, F&B businesses, hotels, educational institutions, community centres, medical institutions and laboratories across Hong Kong and Macau. The team helps customers choose the right filter and dispenser solution around site needs, water-quality goals and maintenance arrangements.
Further reading on RO water
To first understand what RO water is, how reverse osmosis filtration works, and how to choose an RO filter for home, office, school or commercial use, read What is RO water.