Does Reverse Osmosis Remove Fluoride

Does Reverse Osmosis Remove Fluoride?🥇(August 2022)

Reverse Osmosis (RO) is a process used to purify water by forcing it through a semi-permeable membrane.

RO removes dissolved solids such as salts, minerals, metals, bacteria, viruses, and many types of microorganisms.

However, what about Fluoride, does RO really help to reduce fluoride levels in municipal water?

That’s exactly what we’ll be discussing directly below.

Does Reverse Osmosis Remove Fluoride?

There has been some debate over whether or not RO completely removes fluoride. Some believe that it does, while others do not. There are two main reasons why this question remains unanswered. First, there is no conclusive evidence one way or another. Second, even if RO removed fluoride, it would only be removing a tiny amount of fluoride compared to the total amount of fluoride found in drinking water.

However, according to the CDC,

reverse osmosis systems help to remove common chemical contaminants (metal ions, aqueous salts), including sodium, chloride, copper, chromium, and lead; may reduce arsenic, fluoride, radium, sulfate, calcium, magnesium, potassium, nitrate, and phosphorous.

There has been no research conducted to determine whether or not reverse osmosis removes fluoride. There is evidence that suggests that reverse osmosis systems do not remove fluoride. For instance, a study published in the Journal of Water Health & Hygiene in 2010 concluded that there was no significant difference between the amount of fluoride in tap water before and after treatment using a reverse osmosis system.

However, another study published in the National Library Of Medicine in 2014 suggested that reverse osmosis helped reduce levels of fluoride in drinking water in Estonia. According to the authors of the study, the removal of fluoride during reverse osmosis was due to the use of membranes made from polyamide materials. Polyamides are synthetic compounds that are resistant to chemicals and are commonly used in reverse osmosis filters.


In the section below we’ve discussed all of the frequently asked questions that we get regarding reverse osmosis and the process of removing Fluoride.

What Is Fluoride?

Fluorine is a naturally occurring element that occurs in many minerals, including calcium fluorite, apatite, fluorapatite, fluorspar, and hydrofluoric acid. Fluoride is added to public water supplies to prevent tooth decay.

How Much Fluoride Does Municipal Water Contain?

According to the Environmental Protection Agency (EPA), the average American consumes approximately 1.6 gallons of water per day. That means that each person drinks around 2,400 gallons of water annually. According to the EPA, the average concentration of fluoride in U.S. public water systems is 0.7 parts per million (ppm). However, according to the Centers for Disease Control and Prevention (CDC), the average concentration of fluoride found in tap water ranges between 0.8 ppm and 1.6 ppm.

Sources of Fluoride

Most Americans get their fluoride from municipal water sources. Drinking water contains fluoride because it is added to protect against cavities. Most dental experts agree that fluoride levels should range between 0.7 ppm and 1.2 ppm.

Why Should I Care About Fluoride?

Drinking water containing high amounts of fluoride may cause health problems. For instance, excessive exposure to fluoride can lead to skeletal fluorosis, a condition characterized by bone deformity and joint pain. Other adverse effects include decreased IQ, memory loss, headaches, fatigue, muscle weakness, numbness, tinnitus, and kidney damage.

Where To Get The Best Reverse Osmosis System

We’ve written a few articles about which RO systems are the best, including the best whole house reverse osmosis systems, and the best water filters to remove fluoride, etc.


While there is no definitive answer regarding whether or not RO removes fluorides, there is no reason to worry about consuming too much fluoride. Even if you drink water with a high level of fluoride, it is unlikely to affect your overall health.

Hi! I'm Charlie. If you're wondering why I started WaterSystemsGuide, it's because I previously worked as a water systems specialist/consultant for a large government initiative in California, USA. However, after leaving, I wanted to provide advice and information for others, to pass my knowledge on, so I created this site!
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