Executive Summary

Executive Summary
Testing, Efficacy and Performance
The use of ozone in laundry is not new. Thousands of installations have been conducted over the last two
decades proving significant benefits to commercial institutions by using this natural oxidizer to clean and
sanitize fabrics. The challenge undertaken by GreenTech was how to create a cost-effective product for home
use. pureWash Pro is the culmination of over 11 years of research into the use of ozone in a residential
laundry application and experience with over 50,000 pureWash 1 units in homes around the world.
Positive experiences and feedback from thousands of customers has provided evidence of the many benefits
of the pureWash laundry system. To validate the anecdotal evidence, GreenTech commissioned two
independent and respected labs to test the pureWash Pro:
- Sterling Laboratories, Toledo, OH - using ASTM, CSPA, and AATCC test methods
- EMSL Analytical, Inc., San Leandro, CA - FDA Registered | DEA Licensed | Accredited to ISO 17025
The following is a summary of these tests:
Cleaning Effectiveness
The reasons most consumers wash clothes fall into two categories:
- Overall freshening, odor removal and soiling from skin and body oil
- Stain removal
pureWash is proven to be very effective in freshening, odor removal and cleaning everyday soiling. It
is not a replacement for stain treatment which requires pretreatment and/or detergent. A small
amount of detergent improves the effectiveness of pureWash. pureWash is highly effective as an
antimicrobial for bacteria reduction.
Testing by Sterling Labs showed pureWash ability to improve the performance of standard detergents and
pretreatment products against stains and doing so with a reduced amount of detergent.
Odor Removal
Odors in clothing is generally related to biological contaminants, specifically mold and bacteria. To show the
effectiveness of pureWash on specifically removing odors testing was conducted by Sterling Labs, where they
prepared soiled items obtained from Scientific Services washed and presented before a 10-member
panel resulted in pureWash Pro with a decidedly higher score indicating a “fresher smell”
pureWash Pro Tap Water
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