This post has been updated for November 2009.
I wanted to post an update on my quest for the best shower filter. I received a lot of useful comments on my last shower filter post, and I’ve also tested a couple of new shower filters.
The shower filter market is huge, and sales are dominated by shower filters that use KDF (Kinetic Degradation Fluxion). However, KDF filters don’t actually perform well as shower filters. They often get clogged after a few months of use. Also, they don’t perform well in hot water, and they don’t remove chloramines (which is commonly used in place of chlorine in tap water). Also, KDF filters are also affected by water pressure. When the water pressure is not high enough, water can’t pass through the KDF powders.
I haven’t found any formal comparative tests of shower filters. One independent reviewer “ReviewGuy” tested eight popular filters with a chlorine test kit in 2006. About his tests, he says:
Tests include before and after total residual chlorine levels using a digital chlorine meter to measure the results. The shower filters are tested for their ability to remove total residual chlorine in an actual residential shower unit.
You can read about his results here.
The best performing shower filters were: two Vitamin C shower filters, and the 
ReviewGuy concludes by saying:
I welcome any of my readers to verify or debunk the claims I have made in this comparison by conduction your own independent research & testing. This is an open invitation that includes everyone from the end user to shower filter manufacturers. To date, there has not been a single person or company that can or will refute my data.
However, there are a few new shower filters that have appear in the market since 2006. In my opinion, the best shower filters today are combination filters that use both Vitamin C filters and chlorgon or ceramic filters.
What is Chlorgon? It’s a combination of calcium sulfite with a ceramic binder to form non-soluble ceramic sulfite beads.
Vitamin C (ascorbic acid) is really the best at removing chlorine and chloramines. It removes 99% of the chlorine in both hot and cold water, and Vitamin C filters last about twice as longer as KDF filters.
But Vitamin C filters only neutralize chlorine — they don’t filter out anything else in shower water. To remove VOCs and heavy metals, you have to add a ceramic or chlorgon filter. I actually found such a combination filter. It’s called the Vita Shower Filter and it combines a Vitamin C filter, a ceramic filter, and another unspecified filter for “removing lead”. See the diagram below:
So the Vita Shower Filter is my pick as the best water filter. It seems to work well in my shower. But I’d like to see this filter formally tested. My second choice would be the Sprite Shower Filter since this filter performed well in the tests mentioned and removed 99% of the free chlorine.
Read more! Related stories:
- The Best Shower Filters Of 2009
- How To Filter Your Shower Water Very Efficiently
- Most Efficient Water Cleaner: Terra Cotta Gravity Water Filter and Cooler
- Berkey Light Gravity-Flow Water Filter
- Remove Chlorine From Your Bath Efficiently
{ 1 trackback }
{ 68 comments… read them below or add one }
← Previous Comments
RE: “Joe”’s post of June 24, 2009 at 5:39 pm presenting the reply of the Vitashower company…
Was the original message really so full of misspellings and grammatical errors? That alone would make my confidence in the validity of the statements plunge. Also, the writer compares apples to pears (almost said oranges!) in some of their points.
I live in a very rural area with unchlorinated well water. I suspect that it’s the high mineral content in the water that’s effecting me and began to search tonight for a shower filter. I assumed that a filter would remove any icky stuff AND minerals, but it seems not to be the case. Call me dopey, but a water softener ADDS salt to an already high mineral load, no? Is there a special shower filter that will remove minerals without adding salt? I’m REALLY confused now!
My skin is dry and uncomfortable, especially in the winter. The skin on my shins and cuticles easily cracks and bleeds. So far, after trying various products, I am using a combo of “basis sensitive skin bar soap” (works better for me than Aveeno, Dove, etc, available at drugstores in my area) and “Tate’s” for moisturizing (expensive non-oily lotion that’s very soothing, available at a health food store near me). Not a perfect solution, but it helps.
I won’t pretend to be an expert on this but I might make a few nutritive suggestions. Winter can be a great time to increase oil/fat intake: you need more fat to stay warm and the air is dryer and your skin needs more fat. So increasing Omega 3’s and other good oils like olive and coconut be really helpful, some of that as really good cod liver oil is also great for the immune system. Externally I like using really good organic olive oil after my shower. Some friends of mine love using organic unrefined coconut oil in the same way. For me the oils externally work better than the lotions. plus I feel better because so many of the lotions have a bunch of crap in them, i prefer to put things on my skin that are more or less edible
anyway, that is my two cents. Maybe something for you to play with
Wish I had something useful to share on your filtering questions…
Merry Christmas,
Michael
Thanks for the tips, Michael. I prefer not feeling greasy, though, as I frequently have to apply relief-in-a-bottle several times a day. And Tate’s is all botanical, no added oils: apple, blackberry, celery, coconut, marigold, a bunch of others. I just wish it wasn’t so pricey!
I have used two types of shower filters. The first one I bought was the New Wave Enviro shower filter. In a few days I noticed my skin felt better, my scalp wasn’t dry and itching. It worked great. Last summer when it was time to replace the filter I bought the sprite shower filter at a booth at our state fair. This sprite filter did absolutely nothing! My scalp is itching again, my skin is dry. I feel like I got an empty filter cartridge! I’m going back to the Enviro filter.
After dinner at a friend’s house a few days ago, we watched the documentary “Flow”. Water wars aren’t off in the future, they are taking place right now.
It seems as though nearly all of our water supply is contaminated now with one thing or another, if not multiple things. Some nasties travel 1000s of miles with water vapor and rain down again on us. If you are interested in water issues and your local library has it or it’s showing at the local indy theater, I recommend a viewing. If you are REALLY interested in water issues, you may want to rent it or buy it.
I am so glad I decided not to have children.
Oooops! I meant to say 100s of miles, not 1000s. Pardon me.
Where is the info on the vitashower sf-1 containing ceramic and other filters in addition to C coming from? It says nothing about that on their site and the filters don’t have water coming out from the bottom like this diagram shows.
I have a vitashower VS-1 which is from a few years ago when there was some dispute and the companies split apart. I will probably go with the SF-1 even though the form factor (hanging down in the way) and the plastic is a nuisance. You can’t just put any shower head on it. Since the plastic parts are thicker, and many shower heads are now full of plastic connectors spray painted chrome, things don’t fit together. Also, the one I have is cracked and sprays water everywhere from the connector to the pipe.
I wonder if anybody tries the ceramic ionic shower filters like kenrico or Saiseido that claim not needing replacement filter
I have tried the Paragon and the Srite shower filters. I have since found out that our local (NJ) water supply uses chloramines NOT free chlorine for sanitizing the water. The paragon filters did help to filter the chloramines,but didn’t last very long (approx 2 months with 2 people in the house ). The Sprite shower filter did not work on our water at all. I coukld tell this by the results on my skin (very dry and itchy). Of course, now I know why– the KDF mechanism dfoes not filter out chloramines. Since discussing this with others, I have been told to put in a whole house chloramine filter. Does anyone know if the whole house filters that are available actually filter out chloramines or do most of them just filter the free chlorine?
← Previous Comments