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Recent Reports and Tests of KlearWater active Chlorine Dioxide water treatment

May, 2007
Clostridium difficile
The Sanger Institute has completed the sequencing of Clostridium difficile strain 630 (epidemic type X), a major nosocomial pathogen world-wide causing disease ranging from antibiotic-associated diarrhoea to life-threatening pseudomembranous colitis.

More information: http://www.sanger.ac.uk/Projects/C_difficile/

Tests recently completed for this pathogen, a continuing "problem pathogen" for hospitals are as follows;
  • 70% isopropyl alcohol solution shows a 2-log reduction, not an approved level of inactivation of Clostridium difficile.
  • 100 ppm concentration of XiniX-KlearWater pre-formulated ClO2 solution shows >5-log reduction of Clostridium difficile, an approved level of inactivation.
Note: This is a very dilute solution of XiniX-KlearWater which is normally formulated at 1500 ppm or .15% concentration.

Below is an extract from an EPA-sponsored test titled:

Technology Evaluation Report

Evaluation of Spray Applied Sporicidal Decontamination Technologies

 

·         KlearWater was one of three products that killed all that nasty anthrax!

·         KlearWater the only one used "neat"-NOT MIXED OR ACTIVATED.

·         KlearWater used "off the shelf", not custom mixed for the tests.

·         KlearWater is a safe consumer product used at low concentration, not an industrial cleaner.

 

The link for the full report is:

http://www.epa.gov/nhsrc/pubs/erSporicidal012407.pdf

Inactivation of Bacillus anthracis Ames Sporesa on Glass (Ten Sporicidal Technologies)

Technology (Contact Time)

Inoculum (CFU)

Total Observed CFU

% Recovery

Decontamination Efficacy

CASCAD SDF (30 minutes) Sprayed H2O Sprayed CASCAD SDF Laboratory Blankb

9.67 x 107 9.67 x 107 0

5.83 ± 0.14 x 107 2.78 ± 3.32 x 102 0

60.3 ± 1.5 0 0

-6.4 ± 1.6 -

Procedural Blankc

0

0

0

-

DeconGreen (30 minutes) Sprayed H2O Sprayed DeconGreen

9.67 x 107 9.67 x 107

5.83 ± 0.14 x 107 2.44 ± 1.49 x 104

60.3 ± 1.5 0.025 ± 0.015

-3.4 ± 0.29

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

DioxiGuard (10 minutes)d Sprayed H2O Sprayed DioxiGuard

9.40 x 107 9.40 x 107

6.87 ± 0.73 x 107 4.04 ± 1.35 x 104

73.1 ± 7.7 0.04 ± 0.01

-3.2 ± 0.13

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

EasyDecon 200 (60 minutes) Sprayed H2O Sprayed EasyDecon 200

9.77 x 107 9.77 x 107

5.96 ± 0.89 x 107 7.54 ± 1.75 x 106

61.0 ± 9.1 7.72 ± 1.80

-0.91 ± 0.10

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

Exterm-6 (60 minutes)d Sprayed H2O Sprayed Exterm-6

9.77 x 107 9.77 x 107

5.96 ± 0.89 x 107 4.65 ± 2.47 x 106

61.0 ± 9.1 4.76 ± 2.5

-1.1 ± 0.20

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

HI-Clean 605 (90 minutes) Sprayed H2O Sprayed HI-Clean 605

9.60 x 107 9.60 x 107

5.81 ± 0.91 x 107 0

60.5 ± 9.5 0

-≥7.8

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

HM-4100 (30 minutes) Sprayed H2O Sprayed HM-4100

9.50 x 107 9.50 x 107

5.93 ± 0.74 x 107 2.76 ± 1.07 x 107

62.4 ± 7.8 29.0 ± 11.2

-0.37 ± 0.22

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

KlearWater (30 minutes) Sprayed H2O Sprayed KlearWater

9.50 x 107 9.50 x 107

5.93 ± 0.74 x 107 0

62.4 ± 7.8 0

-≥7.8

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

Peridox (10 minutes) Sprayed H2O Sprayed Peridox

9.40 x 107 9.40 x 107

6.87 ± 0.73 x 107 0

73.1 ± 7.7 0

-≥7.8

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

Selectrocide (10 minutes)d Sprayed H2O Sprayed Selectrocide

9.40 x 107 9.40 x 107

6.87 ± 0.73 x 107 3.87 ± 0.71 x 105

73.1 ± 7.7 0.41 ± 0.08

-2.3 ± 0.08

Laboratory Blank

0

0

0

-

Procedural Blank

0

0

0

-

a

Data are expressed as mean (± SD) total number of spores (CFU) observed, percent recovery, and decontamination efficacy (log

reduction)

b

Laboratory Blank = not inoculated, not decontaminated coupon

Procedural Blank = not inoculated, decontaminated (H2O-sprayed) coupon

d

Vendor expressed concern that the 40 psi spray pressure utilized for testing could potentially be too high for optimal performance of their product

"-" Not Applicable