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The Best Reverse Osmosis Water Filters 2010

Reverse osmosis for the home is a water purifying method in which tap water is forced through a semi-permeable membrane that prevents bacteria and minerals from passing through to produce a more pure form of drinking water. The choice of a water filtration system depends on if you’re looking to rid of a specific contaminant [...]

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Ovopur: The Art Of The Water Filter

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I’ve been testing an Ovopur water filter from Aquaovo, a company based in Montreal. This filter is certainly the most attractive I’ve come across. My eye is often drawn to its porcelain ovoid shape sitting in my ktichen. I’ve come to think of it as a piece of art that also happens to filter water.

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The Best Water Filters Of 2010

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There are a lot of misleading claims about water filters. Many filters are marketed with general statements like “improves taste and odor”. But filter manufacturers don’t mention the specific amount of pesticides or chloramines removed, for example.

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Updates From The MetaEfficient Kitchen Labs

This summer I’ve been working on food-related optimization projects, here are some updates: I now have subscriptions with two local farmers (through a CSA or Community Support Agriculture). One farmer provides me with raw milk, raw butter and eggs, the other farmer provides vegetables and fruit. They both happen to deliver to same street in my neighborhood, [...]

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Ozone Generators: Effectively Deodorize Rooms and Purify Water

One of the simplest and most inexpensive ways to purify water is to bubble ozone through it. Ozone is a molecule made of three oxygen atoms ( O3). It disinfects water very effectively, through a process called oxidation. Ozone ruptures the cellular structure of organisms, killing them. It also oxides toxic organic chemicals, minerals and [...]

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How To Filter Your Drinking Water Very Efficiently

I’ve spent quite a bit of time researching how to filter drinking water effectively. Originally, I was interested in filtering the rainwater that falls on my roof. But I had to put that project on the back burner for now. During my research I noticed that there is little unbiased information available on water filters [...]

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Very Efficient: Pocket Filter by Katadyn

This is a serious portable water filter from Katadyn. It’s efficient because it uses a ceramic filter, which will not let anything larger than 0.2 microns through. It also has a long life — it will filter up to 13,000 gallons before you need to replace the cartridge. The filter eliminates bacteria, viruses, cysts, protozoa, [...]

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Most Efficient Water Cleaner: Terra Cotta Gravity Water Filter and Cooler

Here is another efficient ceramic water filter. This gravity filter has a hand-made terra cotta base, which cools the water using natural convention. We consider metaefficient because: its has excellent filtration, and a very long filter life (years). Also, the terra cotta doesn’t leach contaminants into the water, and it keeps the water cool without [...]

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Berkey Light Gravity-Flow Water Filter

Gravity filters are more effective than other types of water filter, because the water drips slowly through the ceramic elements, and this process removes almost all the contaminants in water. The filters can be cleaned with a toothbrush and last for up to 2,000 gallons. This Berkey Light filter uses Black Berkey elements, and they [...]

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Slow Sand Filters

Slow sand filters are perhaps the most efficient means of producing clean drinking water. Slow sand filters rely on biological processes for their action rather than physical filtration or disinfection. They require no electricity, no chemicals and no filter changes. How is this possible? The secret is that slow sand filters work through the formation [...]

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