The excerpt below from the NY Review Richard Garwin article made reminded me of a recent press release from DAWK (also see excerpt below).
Garwin excerpt:
"The first and most practical defense against biological warfare attack is to maintain "positive" pressure of filtered air within buildings. It takes a very small capital expenditure and a very small expenditure in power to provide a positive pressure so that normal winds will not infiltrate a building, and the anthrax spores or other microbes will be kept out. To do this the air intake to a normal building—whether an office building, an apartment building, or a private house—should be provided with a small blower that delivers air through a High Efficiency Particulate Airfilter (HEPA) at a rate that exceeds the leakage of air in or out of the building. Such "makeup" air will then produce excess pressure in the building so that air flows out through any cracks or apertures, blocking any inflow of unfiltered air. If no form of air intake exists, a window or a portion of a window can be removed to make one. It is interesting to note that any normal building, no matter how tightly closed, will have the same exposure to a biological warfare agent as it would if the windows were wide open—it takes longer for the agent to enter, but it stays there a much longer time. Positive-pressure filtered air largely eliminates this problem."
DAWK PR excerpt:
SALT LAKE CITY, Sept. 4 /PRNewswire/ -- Daw Technologies, Inc. (Nasdaq: DAWK -
news), announced today that it has been selected by one of the world's largest retailers as one
of two suppliers of air entry systems for the retailer's supercenter stores to be built over the
next two years. The company estimates that its Envirozone(TM) air curtain product will be
installed in almost 200 of the planned supercenter stores over the next two years, resulting in
total revenue of approximately $1.25 million.
The Envirozone(TM) air curtain product is one of several building entry products designed by
the company as part of its ongoing efforts to diversify its business beyond the design,
manufacture and installation of clean rooms. The company's Envirozone(TM) air curtain uses a
constant vertical stream of air to separate indoor air from the outdoor air.
Alan Robins, President of Daw Technologies' manufacturing business unit stated: ``We have
been working closely with this particular customer for some time to develop an air entry product
that would work with their planned supercenter stores. The design we have developed is very
practical and cost effective, and we anticipate that it will have broad application beyond this
major retail customer. This product is particularly well suited to high traffic entrances in grocery
stores, warehouse stores and other large retail outlets.'' |
