Labconco 3940200 User Manual - page 28
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C
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4
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High Performance Features:
The patented* XPert Filtered Balance System and XPert
Filtered Balance Station are designed to meet the needs of the
laboratory scientist, and provide superior containment while
conserving energy at OSHA approved “low flow” velocities as
low as 60 feet per minute. The filtered enclosures have been
tested to effectively contain toxic and noxious materials when
properly installed and operated. What makes the filtered
enclosures so unique is the revolutionary way they direct air
into and through the contaminated air chamber. Labconco
engineered the filtered enclosures to minimize the effects of
turbulence. The containment-enhancing and aerodynamic
designs of the upper sash foil, side air foils, lower air foil,
upper dilution air supply, and rear perforated baffle all work in
concert to produce horizontal airflow patterns that significantly
reduce powder, chemical and particulate concentrations
through the work area.
*(U.S. Patent No. 6,461,233)