First Need® Portable Water Purifiers

Microbiological Purification Test Results

First Need portable water purifier is certified to meet U.S. EPA Guide Standards for Microbiologial Purification for removal of cysts, disease bacteria and virus!

To our knowledge, First Need is the only portable purifier to be so certified without the use of chemicals, double-pumping or hold time.

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Summary of Test Results with First Need® independently tested at University of Arizona to the Current EPA Guidelines

General Ecology Inc.'s First Need® systems were evaluated for their ability to remove microbiological contaminants according to the current EPA Standard and Protocol for Testing Microbiological Water Purifiers. The systems were operated for 100% of the rated capacity and challenged periodically with high concentrations of bacteria, cysts and viruses. At the 60%, 75%, 90% and 100% test points the units were challenged with "worst case" water according to the protocol. Additionally, the systems were allowed to stagnate for 48 hours after the 50%, 75% and 100% test points to demonstrate that no microbiological growth through the cartridge occurred.

 

Technical Details:

%REDUCTION (geometric average of 3 units)
Bacteria Cysts Virus
Test Point % of Rated Capacity Klebsiella terrigena Cryptosporidium Poliovirus type 1/Rotavirus SA-11
start >99.9999 >99.9 >99.9
25% >99.9999 >99.9 >99.99
50% >99.9999 >99.9 >99.99
48 hr. stagnation NG NG NG
*60% >99.9999 >99.9 >99.99
*75% >99.9999 >99.9 >99.99
48 hr. stagnation NG NG NG
*90% >99.9999 >99.9 >99.99
*100% >99.9999 >99.9 >99.99
48 hr. stagnation NG NG NG
 

* - Worst case challenge water

NG=No Growth

Conclusion:
The FIRST NEED systems met the EPA Guide Standard as Microbiological Water Purifiers by removing bacteria, cysts and viruses, without the use of chemical additives or multiple pass through.

 

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