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The water you drink should be naked: free of bacteria, free of added chemicals, and free of hassle. Drink naked water anywhere.
The water you drink should be naked: free of bacteria, free of added chemicals, and free of hassle. Drink naked water anywhere.
The water you drink should be naked: free of bacteria, free of added chemicals, and free of hassle. Drink naked water anywhere.
1,748 backers pledged $81,391 to help bring this project to life.

About this project

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Naked Filter - clean water for Every Body

$81,391

1,748

$80,000 unlocks a great discount for all our supporters
$80,000 unlocks a great discount for all our supporters

Our vision is to provide cleaner, healthier drinking water to all of planet Earth. We plan to realize that one filter at a time. We need your help to launch this product to the world. Naked Filter - clean water for Every Body.

The water you drink should be naked: free of bacteria, free of added chemicals, free of odors, and free of hassle. Naked water is healthier and tastes better. And now you have the freedom to drink naked water anytime, anywhere without any worries at all. This bottle contains the revolutionary Naked Filter from Liquidity Nanotech, the culmination of over 15 years of material science R&D to bring the world a new solution for water filtration.

Naked Filter guarantees the water you drink is effectively filtered. Naked Filter removes 99.9999% of disease-causing bacteria & protozoan cysts all the way through the life of the filter. Other filters’ effectiveness diminishes over time. Naked Filter never stops effectively filtering your water. When the filter is done, no more water passes through. Then you know to swap the old filter out for a new one.

Naked Filter is stupid simple. You fill up a bottle with water and screw on the cap. When you’re thirsty, the naked water you enjoy passes through the filter and shoots straight into your mouth. No pumping. No batteries. No chemicals. Just drink your fill straight from the bottle as you naturally would. It’s that easy to use.

Naked Filter is a consumer brand created by Liquidity Nanotech. At Liquidity, we wanted a way to share our revolutionary technology with the world. And we figured water bottle filters were the best way to get clean water to every body.

Our story is the classic startup tale, with our own heroes, challenges, setbacks, and victories. It began about 15 years ago on the shores of Long Island, with two professors at Stony Brook University who coincidentally happen to have the same first name. The “Bens,” as we call them, are some of the world’s leading polymer scientists, and experts on nanostructured materials.

The Bens were interested in a process called electro-spinning, which could theoretically be pressed into service to create a water filtration membrane. Think of it like a form of 3D printing, but with special materials in a custom-designed, advanced process. Their research was originally funded by the National Science Foundation, the National Institutes of Health and the U.S. Navy. It took over ten years of R&D for the Bens to establish the foundation of Liquidity’s membrane manufacturing process.

In 2010, full of ambitious Silicon Valley dreams, Liquidity began taking steps to scale the proprietary technology up to commercial levels. But scaling proved to be more difficult than everyone originally thought. It was hard. With sheer perseverance and grit, the Liquidity team finally overcame all odds. We can now confidently manufacture as much water filtration membrane as the market demands today, and well into the future.

Over the past year, Liquidity started developing consumer products, so we could get this technology into your hands. Naked Filter is our first to launch, and we plan to launch many more. We’re proud of what we have created. And we’re grateful to have you join our effort.

Liquidity manufactures the membrane in Alameda, California. 

Naked Filter seeks to provide clean, healthy drinking water to every body. That’s our mantra. Literally, we want to reach everyone in the world. We’ll start by selling in North America, offering Americans peace of mind that they’re always drinking healthy water.

If Naked Filter takes off, Liquidity plans to expand around the globe, and provide life-saving bottles to those currently without access to clean, healthy, drinking water. This is not pie-in-the-sky idealism here. We've developed inexpensive, efficient, effective technology that could help millions and millions of people in the developing world for whom drinking a glass of water is a daily roll of the dice.

But we need your help. In order for us to achieve the scale necessary to affordably distribute our Naked Filter water bottle everywhere, we require your involvement to support our growth and show market traction. The task is too great for us to do it alone. We already envision many other products where Liquidity’s water filtration membrane can make a practical impact. The more we grow, the more people we can help by providing clean, healthy drinking water.

For all you science lovers out there, get ready for us to geek out on you…
Naked Filter is a mechanical micro-filter with an activated carbon core. That means it physically separates particles from your water by trapping them inside the Liquidity nanofiber membrane. Imagine a colander that you use in the kitchen to strain out pasta; that same principle gives you a decent idea of how our filter works. Naked Filter removes bacteria, cysts, and any particle bigger than 0.2 microns in diameter from the water you drink. Our activated carbon core improves the taste and odor of your water. Because our filter uses a mechanical filtration process, Naked Filter remains safe throughout the entire life of the filter.  In other words, it will reliably and unfailingly remove bacteria and cysts from your water. It’s as effective the last time you use it as it is the first time. As more and more water passes through Naked Filter, its filtration membrane traps more and more particles. Over time, the filter’s flow rate will gradually slow, and eventually shut off completely. Naked Filter is self-regulating. When the water flow is too slow, just replace the filter. 

There are only a few key elements that comprise the Naked Filter.  The most important is Liquidity’s proprietary “bacteria retentive” nanofiber membrane (wow, that’s a mouthful!). The membrane works using a process called “size exclusion.”  This means the membrane physically blocks or excludes particles based on their respective sizes. “Bacteria retentive” is a common industry term that means the membrane retains or traps bacteria based on size. The nanofiber membrane possesses a unique quality: it can exclude / retain small particles while letting water pass through very quickly. This is possible because the membrane is made of extremely narrow plastic fibers. The fibers create a very complex web like structure with many intersections. These intersections form very small openings called pores. The resulting porous structure is tightly controlled during the manufacturing process. 

Size exclusion membranes with the same bacteria retention performance have been used for decades to filter things like water used in pharmaceutical drug manufacturing and saline solution. However, these membranes could not be applied in a consumer product like a personal water bottle because they require high pressure to force the water through the pores. These membranes are mostly solid plastic. Liquidity’s innovation was to manufacture a material with the same bacteria retention performance, but made out of fibers rather than the shape of plastic sponges. With Naked Filter, now you can get pharmaceutical grade bacteria and cyst filtration straight from your water bottle.

During the manufacturing of the membrane, the nanofibers are laid down in many layers to form a structure that’s complex, but is mostly empty volume. If you are familiar with the game Kerplunk, the sticks that hold up the marbles is a good representation of how intersecting lines can create a very open but retentive structure.

The intersecting sticks show how with just a few lines you can create many points of intersection that prevent the balls (or bacteria) from passing through. Yet look at how much open space there is! Naked Filter works exactly the same way, except there are millions of fibers and intersections in the membrane. This scanning electron microscope image shows how bacteria size particles are trapped. The microscope lacks the depth of field to show how much open volume there is inside the membrane, but trust us, it is there.

As the bacteria in the water flows into the membrane, the bacteria are quickly trapped in the upper layers of the complex, highly porous structure.  Meanwhile, all the empty space in-between the nanofibers allows the water to shoot right through. 

There are several common water treatment technologies used today. All of them have positives and negatives. We believe Naked Filter has the best combination of features. Just fill up the bottle, screw on the cap, and drink. The water shoots right through. You cannot find a portable water filter that's as easy to use and as equally effective to the very last drop.

Check out www.nakedfilter.com for more details on how we stack up against the competition.

The CDC tracked over 33 outbreaks of waterborne microbiological illness in 2009-2010. The outbreaks occurred in 17 states and resulted in 1,040 illnesses, 85 hospitalizations , and nine deaths. 

Making sure your family has safe drinking water wherever they go is key to keeping everyone healthy. Children are especially vulnerable. Keep everyone going - from school, to the playground, to soccer practice, to the office with Naked Filter.

You can’t afford to miss a day of training. To perform your best, stay healthy and hydrated at the gym, yoga studio, or playing field with Naked Filter.

Is the water unsafe where you live or where you are traveling to? Carry the world’s most powerful personal water filter with you where ever you go.

Take Naked Filter with you from the office to the peaks and know that you can drink from any water source with peace of mind. Naked Filter looks as good in the board room as it does on the single track.

Protect yourself with the latest technology. Naked Filter removes waterborne illnesses that can be particularly dangerous for the elderly, like salmonella.

 Please see our update here for more details on how to add additional filters to your reward. 

The expected retail price of a Simply Naked package is $23.99 (1 bottle, 1 filter) and $115 for our Naked Family pack (4 bottles, 8 filters). Expected retail pricing for replacement cartridges is $8.99 for 1 cartridge and $23.99 for a three pack. All supporters will be able to purchase replacement filters on www.nakedfilter.com. We will also offer subscription options so you will always have a fresh cartridge ready to use. To thank our early supporters, all of our Kickstarter rewards are offered at a significantly lower value.

Thank you for giving us the momentum to finish off the project of developing Naked Filter! 

Thank you to all of our collaborators who have helped us get the project this far!

Product design:
Gizmo Design, LTD
DDH Product Design, Inc.

Branding & Graphic design:
Bill Rogers

Web design:
Ethercycle 

Promotion:

This project is promoted by Jellop, a direct response online advertising agency specializing in Kickstarter campaigns on Facebook Ads and Google AdWords.

Risks and challenges

We are an experienced team of scientists, engineers, and product engineers. Our core leadership team has centuries of experience bringing new water filtration products to market. That said, as with any manufacturing project, there is some risk to executing our plan to schedule. Given Naked Filter must be micro-biologically integral, there is little margin for error. Our manufacturing process needs to result in a product that has an error margin similar to our nanofiber membrane, less than 1 in a million. The bottle must have a perfect fit to the cap, the filter must have a perfect fit to the mouthpiece. These are unique challenges compared to most consumer products. We are confident we can deliver to schedule, but we thank you in advance for your understanding that we are a small startup launching our first-ever consumer product. There will certainly be unexpected events ahead.

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Support this project

  1. Select this reward

    Pledge $10 or more About $10

    Naked Pioneer!
    We are showing our love for our first backers by giving them this never-to-be-seen again deal! Receive one bottle and one filter. Limited to only 100 units. All we ask in exchange is that you promise to tell your friends about Naked Filter. Post a picture of yourself using your Naked Filter bottle on our Instagram page, and respond to a brief user survey.

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  2. Select this reward

    Pledge $14 or more About $14

    Simply Naked!
    Get our basic model, at the earliest bird special. This includes 1 bottle and 1 filter. A filter lasts 20-30 gallons (75-115 L). The capacity will vary depending on water quality. Expected retail price of $23.99.

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    Pledge $24 or more About $24

    Proudly Naked!
    Get our standard model, at the earliest bird special. This includes 1 bottle and 3 filters. A filter lasts 20-30 gallons (75-115 L). The capacity will vary depending on water quality. Expected retail price of $39.99.

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  4. Select this reward

    Pledge $46 or more About $46

    The Naked Pair!
    Sounds appealing! We have had quite a number of supporters ask for a 2 bottle pack, so here it is! This includes 2 bottle and 6 filters. (We will send two separate packages of 1 bottle and 3 filters, so the shipping will be higher.) A filter lasts 20-30 gallons (75-115 L). The capacity will vary depending on water quality.

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  5. Select this reward

    Pledge $50 or more About $50

    Naked Evangelist!
    Be the first of your friends to get naked. You will receive the first run of bottles delivered in July, before the regular shipments go out. You will receive 1 bottle and 3 filters. Since you'll be getting your bottle early, we ask that you help us get the word out by posting a photo of yourself using the bottle to your Instagram or Facebook feed.

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  6. Reward no longer available

    Pledge $70 or more About $70

    Naked Family!
    (but not in a weird way) Get our family pack, at the earliest bird special. This includes 4 bottles and 8 filters, enough to last the entire family for ~2 months. Expected retail price of $119.99.

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    Reward no longer available 100 backers
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  7. Select this reward

    Pledge $80 or more About $80

    Naked Family!
    (but not in a weird way) Get our family pack, at the early bird special price. This reward includes 4 bottles and 8 filters, enough to last a family for ~2 months. Expected retail price of $119.99.

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  8. Select this reward

    Pledge $90 or more About $90

    Naked Family!
    (but not in a weird way) Get our family pack, at a great, Kickstarter only, price. This reward includes 4 bottles and 8 filters, enough to last a family for ~2 months. Expected retail price of $119.99.

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    11 backers
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  9. Select this reward

    Pledge $100 or more About $100

    Naked Signature!
    Get an autographed bottle from the entire Liquidity team, thanking you for your support in the fight against waterborne illnesses. Display and use this collectors' edition proudly. Get a 2nd bottle and filter for everyday use.

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    Limited 21 backers
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    Pledge $230 or more About $230

    Naked International!
    Get 9 bottles and 27 replacement filter - 3 for each bottle. Shipping internationally can be expensive, so we wanted to offer a pack that would be the most cost efficient way to ship our product to you. Expected retail price of $299.99.

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    Pledge $1,000 or more About $1,000

    Naked Nerd!
    Geek out for a day with the Liquidity material science team. Learn cutting-edge ideas about water, chemistry, and product engineering. And assemble your own Naked Filter by hand -- spend half-a-day with the lab team making your own souvenir filter. Get a bottle and filter to go with it.

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  12. Select this reward

    Pledge $2,000 or more About $2,000

    Naked Insider!
    Get special access! In return for your generous contribution to our cause, we will give you a custom group tour of the Liquidity facility. Learn about our labs, offices, and manufacturing, where you can see how we develop our groundbreaking technology. Then be wined and dined by the CEO and key team members. Plus, get a bottle and a year's supply of filters. (You are responsible for own travel and accommodations.) (We also need to make sure you don't have any potential business conflicts.)

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    Pledge $10,000 About $10,000

    Naked Superhero!
    This is for a handful of amazing pledgees. Just you and us, privately. In return for your incredibly generous pledge, we will give you a private personal tour of the Liquidity facilities, where you can see the nanofiber membrane being made. Your tour will be followed by a private dinner with the CEO and key team members. Get a special bottle autographed by the entire Liquidity team as a commemorative item, plus another bottle and a year of filters for everyday use. (You are responsible for own travel and accommodations.) (We also need to make sure you don't have any potential business conflicts.)

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Funding period

- (30 days)