Updated on September 20, 2020


Created on August 27, 2015

Shield 1000 Drinking Water Purification System

Shield 1000 Drinking Water Purification System is a LED-powered water purification unit.

Developed By Unknown
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Product Description

The Shield 1000 is a water purification system designed by Puralytics which is useful for removing pathogens (bacteria, virus, protozoa), chemical contaminants (personal care products & pharmaceuticals), herbicides, and pesticides. The technology uses a photocatalytic nanotech fiber mesh to destroy contaminants in water.  The Shield aims to improve humanitarian response by enabling access to safe drinking water while reducing water-borne diseases.

Target Users (Target Impact Group)

Distributors / Implementing Organizations

This product has been implemented by Roddenbery Disaster Response Team, and Puralytics.

Manufacturing/Building Method

The product is produced in batches to meet specific requirements. Interview with representative

Intellectural Property Type

Patent Protected

User Provision Model

This product is distributed by Puralytics (or another retailer),  humanitarian organizations, governmental agencies, and non-profits to disaster relief and refugee settlements.Interview with representative

Distributions to Date Status


Description of the combined methods

LED and nanotechnology mesh fiber

Manufacturer-specified water treatment rate (L/hr)

3154 L/hr

Bacteria reduction

6 log

Virus reduction

4 log

Protozoa reduction

4 log

Heavy metals and/or arsenic reduction

Yes, reduction rate unknown

Maximum recommended influent turbidity level (NTU)


Effluent turbidity levels (NTU)

<5 NTU

Safe water storage capacity (L)


Manufacturer-specified lifetime volume (L)

150,000-340,000 L (Cartridge lifetime)



Design Specifications

The patented Puralytics® process employs LEDs to excite a nanotechnology mesh which purifies water following five-step light-activated purification processes. The five-step process includes:

  • Photocatalytic Oxidation – eliminates organic compounds
  • Photocatalytic Reduction – reduces compounds & heavy metals to a less toxic state
  • Photoadsorption – irreversibly adsorbs heavy metals; mercury, lead, chromium, arsenic, etc.
  • Photolysis – high energy breaks up chemical compounds to enhance the other processes
  • Photodisinfection – high-intensity multiple wavelengths more effective than UV irradiation
The Shield sterilizes pathogens, eliminates chemical toxins, and removes heavy metals from the water. The system delivers 100% treated throughput which doesn't require chemical consumables and is scalable up to 100,000 liters per day. Some of the technical specifications of the product include:
  • Water recovery: 100%
  • Water production: 0.5-2.6 L/min (200–1000 gallons per day)
  • Pressure drop: 5–25 psi @ 200-1000 gpd
  • Power consumption: 570 Watts
  • Power input: 100-240 V; 50 Hz-60 Hz
  • Dimensions: 81.3 x 30.5 x 45.7 cm
  • Weight: 27.2 kg
  • Ambient operating temp: 5°C–30°C (41°F–86°F)

Technical Support

Technical support is provided by Pure Health Water, an authorized dealer of Puralytics. Interview with representative

Replacement Components

Some of the replaceable components for Field Shield 1000 includes;

  1. Ozone cartridge(needs to be changed quarterly)
  2. UVC (needs annual replacement)
  3. The catalyst (may need replacing at some long interval dependent on the application)


The LEDs will illuminate with full power for about 3 years. Replacements are only available if the products are shipped back to Puralytics. Interview with representative

Manufacturer Specified Performance Parameters

The designer specified performance targets include: 100% water recovery, removal of emerging contaminants (personal care products & pharmaceuticals), herbicides and pesticides, pathogens (bacteria, virus, protozoa), and industrial chemicals (petrochemicals, toxins) with no chemical consumables, and low generation of waste.

Vetted Performance Status



Once a year maintenance schedule is recommended. The owner's manual provides detailed safety information.

Complementary Technical Systems

Activated carbon filter and ion-exchange technology. Interview with representative

Compliance with regulations

Meets US EPA Guidelines for Microbiological Water Purifiers Pathogen Reductions: Bacteria 99.9999%; Viruses 99.99%; Protozoa (cryptosporidium, giardia) 99.9%

Other Information

Informational video about Shield 1000. Awards

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