For the sake of this article, and because it would make his/her inquiry make more sense, we will assume that Malli intended to ask for a method of testing for FLUORIDE levels in water.

Regretfully we have not heard of any ‘new’ methods a person can use to detect fluoride levels in drinking water since we last addressed this topic. Therefore we will continue to suggest using a meter such as the eXact Micro 7+ Water Testing Meter that uses Fluoride (SPADNS) Reagent to detect fluoride levels in water as low as 0.1 ppm and as high as 1.1 ppm.

One could also use the mail-in fluoride testing services of a company called National Testing Laboratories to determine how much, if any fluoride their drinking water contains.

So, Malli, once you determine if your water contains fluoride, next you will need to decide if you wish to remove or reduce that fluoride level… assuming you have fluoride in your water to begin with.

Removing/Reducing Fluoride Levels in Drinking Water?

When it comes to finding an effective means of reducing fluoride levels in drinking water, thus far our ‘research’ always points us down the same path… towards reverse osmosis water filters. The unit you see on the right, the Pentek RO-3500, has gone through testing and gotten certified by NSF/ANSI to Standard 58 for the reduction of Pentavalent Arsenic, Barium, Cadmium, Copper, Hexavalent & Trivalent Chromium, Cyst, Fluoride, Lead, Nitrate/Nitrite, Radium 226/228, Selenium, TDS and Turbidity.

Though definitely NOT the most expensive unit on the market, this filter has successfully passed third party testing, can produce nearly 8 gallons of crystal clear, filtered drinking water per day, and does so while reducing fluoride levels by more than 90%.

Moral of the story?

You will never know exactly how much fluoride, iron, copper, manganese, chlorine, salt, or other unwanted contaminants your water contains until you perform the appropriate tests on your water. Then, and only then, will you have the ability to make an educated decision regarding water treatment options.

While attending a birthday party for a young child recently a fellow parent attending the party remarked how the restaurant’s water ‘tasted an awful lot like pool water’ and later ‘that it probably had a ton of fluoride in it, too.’

Several other parents chimed in about the quality of the water of the water at the restaurant and eventually the conversation worked its way around the table until finally some asked if we knew of an inexpensive filter that would remove fluoride and get rid of ‘that nasty chlorine taste’.

Apparently one of our other friends spilled the beans about our interest in water quality at some other gathering we couldn’t attend.

Not wanting to miss the opportunity to share a bit of water quality knowledge with an eager audience, we pulled out the laptop (since the restaurant DID have free wireless service… despite its lousy water!) and visited a few sites that we knew carried water filters to reduce fluoride in drinking water.

One noteworthy thing we noticed right away: Although genuinely interested in improving the taste of their water and having the option of whether or not their families consumed fluoride via tap water, few seemed willing to cross the $200 mark for a system. Whether a sign of economic hardship in average families or an indicator that people really don’t care THAT much about the quality of their water, we do not know and we dare not get too involved in topics like that.

At this point we would like to point out that we had more than enough parents in the restaurant watching the kids play in the ball pits, blast aliens on the video games, etc. that our small little group’s conversation did not in any way jeopardize the safety of any children OR result in the disruption of others’ peaceful enjoyment of the establishment.

So… With THAT declaration out of the way, our searches and discussions brought us to the doorsteps of two products that seemed to meet our audience’s needs: the Undersink Fluoride Filter Triple and Pentek RO-3500 Water Filter System.

Both water filter systems claimed to reduce fluoride levels — and on that note we want inform all of you that pretty much NO fluoride filter we came across totally removed fluoride from drinking water — and so we’ll flip a coin to decide which system we discuss first.

* flip * . . . . . Heads. The Crystal Quest Triple Under Sink Water Filter wins.

Cost: Ringing in at the cash register between $173 and $213 depending upon how long you want the multi-stage filter last. You have the option of 10,000, 20,000 or 30,000 gallons. Last time we checked, Filter Water had the unit available (with all three third cartridge options to choose from) with free shipping in the Continental United States.

Fluoride Reduction: In this unit’s second filter cartridge, water travels through fine-mesh ‘pre-resin media’ (SIR-900) to reduce fluoride below 0.5 ppm. At the same time, this filter also reduces arsenic levels if present.

Other Contaminants: In the first cartridge water passes through a carbon block which removes and/or removes volatile organic compounds (VOC’s), insecticides & pesticides (such as atrazine and simazine), and a number of industrial solvents commonly found in drinking water. Chlorine taste and odor also get reduced in this stage.

Our ‘Final’ Opinion: If you want a simple under sink water filter system that will do a lot to improve the taste and safety of your drinking water, the Crystal Quest Triple Under Sink Filter stands as a solid contender from what we have read. Well worth taking a look at if you want to keep spending down and still reap the rewards and benefits of a fluoride (and other contaminants) water filter.

In closing we’d like to offer the testimony of an actual Crystal Quest Triple Under Sink Filter user:

On 2/16/2011 ‘Lynn’ said, “The Undersink Fluoride Filter is a grand product. With the filter your water goes through a cleaning series of 8 stages to prevent all the harmful government added substances from entering the body. It comes with 3 cartridges two that need to be replaced every 6 months to a year. The filter was simple to install and works wonderfully! I would recommend this filter to all citizens who want ‘Big Brother’ out of their water.” (on FilterWater.Com web site)

And now we shall discuss the Pentek RO-3500 Water Filter System. . .

Cost: Ringing in at the cash register at either $199 and $259 depending upon whether or not you want an electronic monitoring system keeping an eye on the effluent stream (water treated by your unit), this unit packs quite a punch for the money.

For around $200 or $260 dollars homeowners can get their hands on a reverse osmosis water system certified and tested to NSF/ANSI Standard 58 for the following: Arsenic (Pentavalent) Reduction, Barium Reduction, Cadmium Reduction, Copper Reduction, Chromium (Hexavalent) Reduction, Chromium (Trivalent) Reduction, Cyst Reduction, Fluoride Reduction, Lead Reduction, Nitrate/Nitrite Reduction, Radium 226/228 Reduction, Selenium Reduction, TDS Reduction, Turbidity Reduction, Chlorine Reduction – Aesthetic, and Taste & Odor Reduction.

Fluoride Reduction: As stated in the last paragraph, the Pentek RO-3500 Water Filter System has passed rigorous testing by an independent laboratory proven that it’s fluoride reduction capabilities meet the requirements of NSF/ANSI Standard 58.

Other Contaminants: We already discussed how the Pentek RO-3500 has tested and certified to NSF/ANSI Standard 58 for the reduction of a bunch of potentially dangerous and definitely unwanted drinking water contaminants so we won’t bore you with the full list a second time.

Our ‘Final’ Opinion: Before we tell you much we like the benefits this system offers, we do want to mention a few reasons why a reverse osmosis water filter system like the Pentek RO-3500 and others may NOT work well for everyone:

1. Some people feel they waste water since not all of the water that goes into the system will wind up as usable drinking water and gets discharged as waste.
2. The water generated by reverse osmosis systems tends to have an aggressive nature.

3. Reverse osmosis water treatment systems produce ‘flat’ tasting water that some people find a bit unpleasant. Because of that taste many owners of reverse osmosis systems choose to install a simple post-ro re-mineralizing cartridge that adds important minerals for taste and nutrition while also balancing the pH of the water before consumption.

OK, so having said ALL that, we found the Pentek RO-3500’s NSF Certification extremely appealing since it ‘guarantees’ the performance of the unit for at the very least, its ability to reduce concentrations of a known list of contaminants.

Recently the U.S. Department of Health and Human Services and the U.S. Environmental Protection Agency stated publicly that they will soon recommend lowering the maximum amount of fluoride allowed in water to a level that will still give citizens the benefits of reduced tooth decay while hopefully preventing excess exposure to fluoride.

Current guidelines place the maximum allowable levels of fluoride between 0.7 and 1.2 milligrams per liter (mg/L or ppm) and the new recommendation would place that limit at 0.7 milligrams per liter.

Why the alleged need for guideline reform and upper limit reduction? Quite simply, the world has changed and no longer do Americans get their dose of fluoride from only one source. The quote below goes into more detail on that point.

“Today both HHS and EPA are making announcements on fluoride based on the most up to date scientific data,” Pete Silva, EPA assistant administrator for the Office of Water, said in statement. “EPA’s new analysis will help us make sure that people benefit from tooth decay prevention while at the same time avoiding the unwanted health effects from too much fluoride.”

The statement notes that Americans have access to more sources of fluoride than they did when water fluoridation was first introduced in the United States in the 1940s. Water is now one of several sources of fluoride. Other common sources include dental products such as toothpaste and mouth rinses, prescription fluoride supplements, and fluoride applied by dental professionals. Water fluoridation and fluoride toothpaste are largely responsible for the significant decline in tooth decay in the U.S. over the past several decades. ( source )

Will changes, if they occur as a result of these recommendations, have any effect on the lives of most people? No, not really. We will all most likely go on with our lives completely oblivious to the reduction in fluoride levels in our drinking water.

That does not mean, however, that some folks will stop their efforts to get all fluoride removed from drinking water. A certain element exists in our society that despises fluoride in all its forms and wants it vanquished from public water supplies altogether.

Fluoride reduction in drinking water?

If government agencies won’t mandate the removal and/or reduction of fluoride levels in drinking water, and people still want it, home water filters for fluoride reduction do certainly exist. Note that we said fluoride reduction and not fluoride removal.

To our knowledge no water filtration units commonly available to the general public will remove all fluoride from drinking water. Quality water filtration units will, however, bear certification to reduction standards established by organizations such as the NSF, an independent testing organization involved in many areas of quality and safety dealing with consumer goods.

As an example, NSF Standard 58 deals directly with the reduction of specific drinking water contaminants. See below.

NSF/ANSI Standard 58:

“Overview: This standard was developed for point-of-use (POU) reverse osmosis (RO) treatment systems. These systems typically consist of a pre-filter, RO membrane, and post-filter. Standard 58 includes contaminant reduction claims commonly treated using RO, including fluoride, hexavalent and trivalent chromium, total dissolved solids, nitrates, etc. that may be present in public or private drinking water. ( source )

Want an example of an affordable reverse osmosis system that has tested and certified to NSF Standard 58, the Pentek RO-3500 Monitored Reverse Osmosis System reduces for TDS, Fluoride, Turbidity, Lead, Nitrate, Selenium, Arsenic, Copper, Cadmium, Barium, Cyst, and Radium… and has a price tag under 270 dollars.

• Chromium will appear in nature in one of three forms: Chromium(0), Chromium(III) or Chromium(VI).
• Chromium(0) gets used in the production of steel.
• Chromium(III) and/or Chromium(VI) may appear in compounds used for chrome plating, making dyes and pigments, tanning leather, and preserving wood.
• Chromium(III) aids the human body in its use of sugar, protein and fat, though health officials suggest not using excessive amounts of dietary supplements containing chromium compounds.
• Higher levels of chromium(VI) may cause irritation to the lining of the nose, ulcers in the nose, runny nose, and other breathing problems such as asthma, coughing, shortness of breath, and/or wheezing. While both Chromium(III) and Chromium(VI) in air can cause the aforementioned problems, effects occur at much lower concentrations of Chromium(VI) than Chromium(III).
• Chromium(III) and Chromium(VI) may exist in drinking water and have no associated tastes or odors.
• If ingested, Chromium(III) compounds tend to have less toxic tendencies and appear to cause fewer health problems than Chromium(VI) which causes anemia, irritation of the stomach, ulcers in the stomach, and ulcers in the small intestine.
• Some laboratory animals exposed to Chromium(VI) experienced sperm damage and damage to the male reproductive system.
• Some Chromium(VI) compounds may cause skin ulcers and a percentage of the population have extreme sensitivity to Chromium(VI) and/or Chromium(III) with allergic reactions manifesting themselves as severe redness and swelling of the skin.
• The Department of Health and Human Services (DHHS), the International Agency for Research on Cancer (IARC), and the EPA have determined that Chromium(VI) compounds are known human carcinogens. ( source )

• Some developmental effects have been observed in animals exposed to Chromium(VI). ( source )

Regulations, rules and recommendations pertaining to Chromium?

The EPA has determined that exposure to chromium in drinking water at concentrations of 1 mg/L for up to 10 days is not expected to cause any adverse effects in a child. The FDA has determined that the chromium concentration in bottled drinking water should not exceed 1 mg/L. The Occupational Health and Safety Administration (OSHA) has limited workers’ exposure to an average of 0.0005 mg/m3 chromium(VI), 0.5 mg/m3 chromium(III), and 1.0 mg/m3 chromium(0) for an 8-hour workday, 40-hour workweek. ( source )

What NSF/ANSI Standards apply to chromium in drinking water?

Standard 53, Standard 58, and Standard 62.

For more information on the specifics of those NSF/ANSI Standards and others, take a look at the NSF International Web Site. It offers a wealth of information for both the consumer AND water professionals alike.

Removing chromium from drinking water?

As far as units for the average consumer, pretty much only reverse osmosis makes any sense. One could use a process like distillation, but it has a flow rate that most likely would not meet homeowner needs and a much higher entry cost.

As an example of a reverse osmosis that carries NSF Certification for chromium reduction, you may want to take a look at the Pentek RO-3500 which has a price tag of under $270 and appears to offer a lot of filtering power for the money.

Pentek RO-3500 Reverse Osmosis Water Filters have tested and certified to NSF/ANSI Standard 58 for the reduction of Pentavalent Arsenic (Arsenic V), Barium, Cadmium, Copper, Hexavalent & Trivalent Chromium (Chromium VI & Chromium III), Cyst, Fluoride, Lead, Nitrate/Nitrite, Radium 226/228, Selenium, TDS and Turbidity.