Third Party Study Shows Tennant Company`s ec-H2O Technology Reduces Environmental Footprints

http://www.businesswire.com/news/home/20091005006452/en

EcoForm study demonstrates environmental sustainability of ec-H2O chemical-free
cleaning technology
MINNEAPOLIS--(Business Wire)--
Tennant Company (NYSE: TNC), a world leader in designing, manufacturing and
marketing solutions that help create a cleaner, safer world, today announces
that its ec-H2O technology has been shown to significantly reduce environmental
footprints across seven key categories when compared to traditional cleaning
with chemicals. The findings are the result of an independent study conducted by
the environmental sustainability group EcoForm.

"Tennant Company`s ec-H2O technology has been heavily lauded by both industry
and environmental leaders for its benefits to cleaning performance and the
environment," said Chris Killingstad, president and CEO of Tennant Company. "The
findings of this study validate what we and leading-edge customers have known
all along-ec-H2O is an environmentally sustainable cleaning technology."

To obtain footprint reduction calculations, the study compared a Tennant T3
20-inch auto-scrubber with ec-H2O technology to a conventional T3 using
traditional cleaning chemicals over 25,000-square feet cleaning five times per
week for education facilities and seven times per week for retail and healthcare
facilities. If one would consider a larger machine or a larger cleanable area,
the footprint reductions would be even more favorable. The analysis included an
evaluation of the cleaning machine, the technology and the packaging, including
materials used and processes employed during manufacturing. In the study
traditional neutral pH cleaning chemicals were set as the base. Using ec-H2O
technology will reduce the footprint significantly from that base. As an
example, ec-H2O could reduce the energy footprint by 95%.

Resulting footprint reduction percentages for ec-H2O technology are:

FOOTPRINT: Retail Healthcare Education
ENERGY 97% 97% 95%
GLOBAL WARMING 96% 96% 93%
OZONE DEPLETION 94% 94% 89%
SMOG 98% 98% 97%
ACID RAIN 94% 94% 89%
WATER POLLUTION 77% 77% 57%
AIR POLLUTION 94% 94% 89%

"Typical footprint reductions on `environmentally sustainable` cleaning
technologies are between 10 to 20 percent compared to traditional methods. But
even taking a conservative testing approach, Tennant`s ec-H2O technology is
achieving environmental footprint reductions as high as 98 percent-that`s a 98
percent improvement in environmental sustainability over traditional cleaning
with chemicals," said Killingstad. "This report reinforces that ec-H2O is
effective, safe and sustainable."

Developed by Tennant researchers and engineers, ec-H2O technology converts plain
tap water into a powerful chemical-free all-purpose cleaner that delivers proven
cleaning results without the negative environmental and health concerns
associated with producing, packaging, transporting, using, and disposing of
traditional cleaning chemicals. The technology has been recognized and honored
for its significance to safety, the environment and the cleaning industry by
Sustainable Industries` Top 10 Green Building Products guide, the Premier
Innovation Celebration, the European Business Awards, the Australian Business
Awards, and R&D Magazine.

About Tennant Company

Minneapolis-based Tennant Company (NYSE: TNC) is a world leader in designing,
manufacturing and marketing solutions that help create a cleaner, safer world.
Its products include equipment for maintaining surfaces in industrial,
commercial and outdoor environments; and specialty surface coatings for
protecting, repairing and upgrading concrete floors. Tennant's global field
service network is the most extensive in the industry. Tennant has manufacturing
operations in Minneapolis, Minn.; Holland, Mich.; Uden, The Netherlands; the
United Kingdom; São Paulo, Brazil; and Shanghai, China; and sells products
directly in 15 countries and through distributors in more than 80 countries. For
more information, visit www.tennantco.com.

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Tennant Company
Patty Gibbs, 651-653-7302
Patty Gibbs & Company PR
patty@pattygibbscompany.com

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