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September 2, 1997

Dr. Charles P.Gerba

U of A Researcher innowave 240/270®
Evaluation of Microbial Removal/Inactivation
 
University of Arizona

  • Renowned for Department of Soil, Water and Environmental Science
  • Dr. Gerba is one of the leading microbiologists in the country - he authored the current EPA standards for municipal drinking water
  • "Open checkbook" for testing the innowave 240/270® against any known microbiological contaminant found in US water systems today
  • "High road approach" - most complete testing ever done on any water purifier
US EPA Criteria
System must meet or exceed US EPA's test standards for Microbiological Purifiers -
  • Water treatment units or devices designed for the protection of human health must be effective against pathogenic microorganisms
  • System must be able to provide this capability over the designed operational life of the equipment
  • Any microbiological water purifier must be capable of removing or killing enteric bacteria, viruses and protozoan parasites
  • System must be capable of reducing "challenge" levels in each class of microorganisms
Test Parameters
  • innowave 240/270® systems were tested against the US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers
  • Both tap water and "worst" water were used in the tests
  • System tested for removal/inactivation of poliovirus, rotavirus, Cryptosporidium oocysts, and klebsiella terrigena
Goal #1
Demonstrate the system's ability to meet the US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers -
  • Klebsiella terrigena
  • Poliovirus type 1
  • rotavirus SA-11
  • Cryptosporidium parvum oocysts
Goal #2
To evaluate system's ability to reduce or inactivate waterborne pathogens -
  • Escherichia coli
  • Salmonella typhimurium
  • Shigella dysentariae
  • Vibrio cholera
  • Yersenia enterocolitica
  • Hepatitis A virus
  • Adenovirus
  • Mycobacterium fortuitum
  • Campylobacter jejuni
Results
In all cases, the innowave 240/270® exceeded US EPA removal parameter levels of -
  • 99.9999% for Bacteria
  • 99.99% for Viruses
  • 99.9% for Parasites
The University of Arizona Study confirmed that the innowave 240/270® -
  • Meets microbial removal standards as required by US EPA, which far exceeds even NSF requirements
  • Is capable of removing all major waterborne disease-causing bacteria from water
  • Removes Hepatitis A virus, one of the most heat resistant enteric viruses
Conclusions
  • Most extensively tested system in US for microbiological contaminants
  • Tests by multiple laboratories have proven the innowave 240/270® to be effective in reducing harmful contaminants
  • Distillation is clearly the most effective method to consistently clean water today