Don't filter - Purify!


The patented, award-winning SolarBag ® produces safer, better tasting water than basic filtration products/water filters or chlorine tablets, using sunlight-activated nanotechnology to eliminate more contaminants than any other portable purifier.

It delivers the most protection and peace of mind – it eliminates contaminants other products cannot.


simple to use

Fill a SolarBag ® with 3.5 liters of fresh water from any source through its included pre-filter. Then place the SolarBag ® in direct sunlight or in any area open to the sky. The water is purified in 2-3 hours on a sunny day or 4-6 hours on a cloudy day or if the source water is tea-colored. An indicator tells you when the water is ready. A Pur-Blue process timer indicates that the purification process is complete. Drink the safe, purified water.


  • It will not clog like a filter and no pumping or backwashing is needed.
  • You can use it well over 500 times.
  • It uses no chemicals so the water tastes great.
Simple to Use

the science of photocatalytic purification

Inside the SolarBag ® is a nanotechnology coated mesh insert, which is activated by the UV rays of the sun. This initiates five separate photocatalytic reactions in the water, which break down toxins at the molecular level, to disinfect and detoxify the water.


  • Chemicals are broken down to harmless minerals
  • Metals are removed from the water and sequestered by the insert
  • Pathogens are killed and rendered harmless

Solar Bag Chart

frequently asked questions

The SolarBag ® is a sunlight-activated reusable water purifier that destroys or removes the broadest range of contaminants without pumping, power source, chemicals or replaceable components. Simply place the SolarBag ® in the sun for a few hours, and enjoy safe water.
No other product available on the market will reduce as many contaminants, metals and pathogens as the SolarBag ®, nor will it be as simple to use.
Inside the SolarBag ® is a nanotechnology coated mesh insert, which is activated by the UV rays of the sun. This initiates a purification process which includes five separate photochemical actions addressing more contaminants than any other portable water treatment product.

  • Chemicals are broken down to harmless minerals
  • Metals are removed from the water and sequestered by the insert
  • Pathogens are killed and rendered harmless
The SolarBag ® treats up to 3.5 liters of water at a time, several times per day and can be reused hundreds of times.
The simple answer: Harmful metals such as arsenic, mercury, and chromium will be stuck onto the surface of the mesh insert, thereby removing them from the water.

The technical answer: Transition and heavy metals such as arsenic, mercury, and chromium are vulnerable to photo-reduction in the SolarBag ®. Reduced metals are attracted to the positively charged surface of the catalyst and are removed from the water by adsorbing to the catalyst surface.
The Puralytics® SolarBag ® requires only sunlight to treat water. Treatment is fastest with intense sunlight and is further accelerated with increasing water temperature. Sunny days in tropical latitudes are ideal. In higher latitudes or with murky water or with overcast skies, water treatment takes longer. We recommend performing the Pur-Blue Integrity Test outlined on the next page to determine treatment time. Water is treated when the blue color is gone.

On a clear, warm, sunny day the SolarBag ® will destroy harmful microbes and chemicals in 2-3 hours. As conditions become cloudy and cool, the energy from the sun is reduced and the time required for purification can take closer to 4-6 hours.
Water from any fresh water source is suitable for the SolarBag ®. This typically includes rain water, well water, lake water, and river water. For best results, the water should be clear.
No. The SolarBag ® is not a desalination system. Fill the SolarBag ® from fresh water sources only. Monovalent monatomic anions (like chloride or fluoride) will not be removed in a SolarBag ®.
Before use, the SolarBag ® has a dry shelf life of seven years. It should be stored in a dry environment and kept out of direct sunlight.
Once the water has been purified, use it or pour it into a clean container for drinking or storage. Replace the cap to keep the SolarBag ® clean.
The SolarBag ® has been tested to the US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers for inactivation of bacteria, viruses and protozoan cysts in a challenge water defined by the EPA. Under these testing procedures, the SolarBag ® killed more than 99.9999% of all bacteria, 99.99% of all viruses and 99.9% of all protozoan cysts. It has also been certified or approved for use by several foreign countries.
We recommend 3 hours in direct sunlight and 6 hours on a cloudy day. You can test the performance of your SolarBag ® by performing a simple test using the food safe Pur-Blue Process Timer. Simply add one drop of the Pur-Blue to the SolarBag ® after you have filled it with water, then use the SolarBag ® as normal. When the blue water becomes clear, the water has been treated.
Perform the Pur-Blue test (see number12 above) to determine if the SolarBag ® is still working. The color will not degrade in the SolarBag ® in sunlight if it is no longer functioning properly. If the blue color does not go away after a full day of sunlight exposure on a sunny day, repeat the test for a second time for confirmation.
The nanotechnology coated insert is not consumed when the SolarBag ® is used--it merely serves as a catalyst converting the solar energy to activate the purification processes. Do not fold or crush the SolarBag ® during use or storage to prevent damage to the insert. With proper handling, the SolarBag ® should last up to 500 cycles.
The pre-filter removes larger particles like grains of sand, leaves, and sediment from the water as its being poured into the SolarBag ®. Tests have shown the pre-filter removes particulates, as small as 100 microns.
Remove the cap and insert the pre-filter into the SolarBag ®. Stretch and fold the elastic to secure it around the opening to the SolarBag ®. Pour the source water through the pre-filter until the bag is full. Remove the pre-filter and replace the cap.
The pre-filter can be gently washed by hand or you can routinely rinse the pre-filter as needed by folding it inside out and pouring water back through it.
The simple answer: The pre-filter was tested as part of the SolarBag ® to the US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers for inactivation of bacteria, viruses and protozoan cysts in a challenge water defined by the EPA.

The technical answer: The performance of the pre-filter was quantified in the US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers at the University of Arizona which showed that the pre-filter alone reduced cryptosporidium oocysts by more than 1.5-log in both general (low NTU) and EPA challenge waters (greater than 30 NTU). The residual microbes were always killed in the SolarBag ® following filtration to the necessary EPA requirements for water purifiers (more than 99.9999% of all bacteria, 99.99% of all viruses and 99.9% of all protozoan cysts) in all test cases.
As a general guideline, if you cannot see through the water in the SolarBag ®, it is probably too turbid and another water source should be used. If another water source is not available pour the turbid water into a separate container and allow the suspended solids to settle before pouring the water into the SolarBag ®.
The simple answer: The SolarBag ® does not make all tea-colored water clear. The tea-color typically results from two sources, either dissolved organics such as grass, leaves and sticks; or suspended solids such as mud, fine sand, and silt. Any of the suspended solids that get passed the pre-filter will not clear in the SolarBag ®.

The technical answer: The SolarBag ® does not make all turbid water clear. The turbidity typically results from two sources: one, dissolved organics such as humic acids resulting from decomposing biomass; or two, suspended solids such as mud, fine sand, clay and sediment. The process works on dissolved organic contaminants and as such will only reduce turbidity associated with those. Any turbidity due to suspended particles that pass through the pre-filter will remain in the water when the process is complete.
For best results using the SolarBag ® the water should be clear. This typically includes rain water, well water, lake water, and river water. It is important to remember that turbid water does not necessarily indicate unsafe water. The SolarBag ® was tested in turbid, dark colored water and met the EPA guidelines for a water purifier in those conditions.
The SolarBag ® was tested in turbid, dark colored water and met the EPA guidelines for a water purifier in those conditions.
No. If the SolarBag ® leaks it should be properly discarded. The SolarBag ® is designed to be durable under normal use, and to fail before the purification capacity of the SolarBag ® is exceeded.
If there is a leak in the SolarBag ® or if it can no longer pass the Pur-Blue Integrity test in sunlight, then the SolarBag ® is no longer working to Puralytics’ specifications and should stop being used.
Cut the SolarBag ® open at the base and remove the mesh insert. Dispose of the insert as non-toxic solid waste. The bag can then be recycled as Type 7 plastic (mixed). Check with your local waste management provider to ensure proper disposal.

awards

The SolarBag ® has received vast recognition, including the following awards:


2014

Blue Tech Research
Disrupt-o-meter Award: Most Innovative and Disruptive Water Technology

Read the story

2013

Sustainable Business Oregon
Innovation in Sustainability Award

Read the story

2013

International Water Association
Project Innovation Awards - Development
Global Honour Award - Drinking Water Supply (Hardware)

Read the story

2012

Inc. Magazine
Top 8 Best Water Investment

Read the story

2011

Global CleanTech 100 Company

Read the story

2010

CleanTech Open 2010
National Grand Prize

Read the story

2010

Imagine H2O
Sustainable Solutions to Global Water Problems

Read the story

user reviews

international missions teams

Safe water. It’s your team’s biggest health risk. Water bottled in developing countries isn’t reliably safe. Portable filters, tablets and boiling can’t remove the chemical toxins and many of the viruses present in the water in the developing world, but the SolarBag ® does.


  • You can use it well over 500 times
  • It keeps purifying as long as the water is stored in the SolarBag ®
  • It will not clog like a filter and no pumping or backwashing is needed
  • It uses no chemicals so the water tastes great
  • It delivers peace of mind – you will always be ready for even the worst situation
  • You can leave SolarBags with the community when you leave, providing them safe water!

natural disasters

SolarBag ® is ideal for quick deployment and longer term water access. It weighs under 4 ounces, p acks flat, stores and transports compactly in bulk in a fraction of the time and at a small fraction of the cost of larger, bulkier alternatives like bottled water or containerized powered water treatment units.


One shipping pallet of SolarBags weighing only 250 pounds will deliver 1.5 million liters of purified water! It would take a C-130 cargo planes full of bottled water to deliver that much water.


  • You can use it well over 500 times
  • It keeps purifying as long as the water is stored in the SolarBag ®
  • It will not clog like a filter and no pumping or backwashing is needed
  • It uses no chemicals so the water tastes great
  • It delivers peace of mind – you will always be ready for even the worst situation
  • You can leave SolarBags with the community when you leave, providing them safe water!

be prepared

How will you get safe water to drink after an earthquake, a chemical spill, a hurricane or other disaster? You could filter or boil it. But, neither will protect you from the toxic mix of chemicals, bacteria and virus that can enter the water supply after a disaster.

Don’t filter, purify!


  • You can use it well over 500 times
  • It keeps purifying as long as the water is stored in the SolarBag ®
  • It will not clog like a filter and no pumping or backwashing is needed
  • It uses no chemicals so the water tastes great
  • It delivers peace of mind – you will always be ready for even the worst situation

recreational

Are you thirsty for adventure? SolarBag ® is your best companion. Camping, hiking, cycling, climbing, any outdoor activity will be safer if you carry a SolarBag ®.


  • You can use it well over 500 times
  • It keeps purifying as long as the water is stored in the SolarBag ®
  • It will not clog like a filter and no pumping or backwashing is needed
  • It uses no chemicals so the water tastes great
  • It delivers peace of mind – you will always be ready for even the worst situation

purchase

Special Pack

Let us know how many SolarBags ® you want to purchase and where you want to send them and we will give you a special quote.
Contact Us

About Us

Puralytics ®, a water purification equipment company headquartered in Beaverton, Oregon, has developed a patented photochemical water purification process using only light energy to activate an advanced nanotechnology photocatalyst. There are no chemical additives and 100% of the water is purified. Puralytics Shield, LilyPad, and SolarBag ® water purification products set new standards for sustainability, ease of use and cost effectiveness.

Contact Us

15236 NW Greenbrier Parkway
Beaverton, OR
97006


Email: info@puralytics.com
Toll Free: (877) 430-8880
International: +1 503 616 2652

Follow Us

Stay up-to-date with the latest at Puralytics.

Facebook
http://www.facebook.com/pages/Puralytics
Twitter
http://twitter.com/Puralytics
YouTube
http://www.youtube.com/user/Puralytics
Newsletter

© Puralytics 2015
® Puralytics is registered with the US Patent and Trademark office with Registration No. 4,217,809
® SolarBag ® is registered with the US Patent and Trademark office with Registration No 4,280,961