High performance fume hoods with integrated sash sensors for automatic multi-speed blower control.

• High performance chemical fume hoods
• Integrated sash sensors for blower speed control
• Factory-installed Guardian™ digital airflow monitor

The Protector® XStream® I-S™ laboratory hoods were engineered to be the best containing fume hoods possible. Testing shows the Protector® XStream® I-S™ easily meets containment per SEFA-1 low velocity hood standards when subjected to the ASHRAE 110 test protocol with results of less than 0.05 ppm leak rate when tested at 4.0 lpm at OSHA-recognized 60 fpm face velocity.

With integrated sash position blower controls, the hoods were designed for use with Intelli-Sense multi-speed blowers. As the sash is raised or lowered, sensors alert the blower to change speeds to maintain a safe face velocity.

Using the concepts of fluid dynamics, engineers designed the Protector® XStream® I-S™ laboratory hoods to produce horizontal airflow, which reduces the tendencies for turbulence. The innovative and aerodynamic designs of the sash handle, air foil, upper dilution air supply and rear downflow baffle work in concert to produce horizontal airflow patterns that significantly reduce concentrations of chemical contaminants throughout the work area, particularly near the operator’s breathing zone and at the work surface. Depending on sash position, tendencies for air turbulence, vortexing and “the roll” frequently observed during traditional fume hood smoke tests are virtually eliminated.

Safety is foremost, but energy savings is equally impressive. Operating a six foot Protector® XStream® I-S™ hood at 60 fpm face velocity, with the sash in its fully open position, requires only 690 CFM. Regardless of your desired operating face velocity, the Protector® Apex XStream® yields the lowest required CFM.

Energy savings translates to cost savings. The Protector® XStream® I-S™ hood provides an excellent economic payback when compared to traditional by-pass hoods operated at 80 or 100 fpm.