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“Smart Lab” Parameters

“Smart Lab” Parameters. Current Best Practice Smart Lab Parameters Air-handler/filtration airspeeds 400 ft/min. max 350 ft/min. max

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“Smart Lab” Parameters

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  1. “Smart Lab” Parameters • Current Best Practice Smart Lab Parameters • Air-handler/filtration airspeeds 400 ft/min. max 350 ft/min. max • Total system (supply + exhaust) pressure-drop 6 in. w.g. <5 in. w.g. (incl. dirty filter allow.) • Duct noise attenuators Few None • Occupied lab air-changes/hr. (ACH) 6 ACH 4 ACH w/contaminant sensing • Night air-change setback No setback 2 ACH w/occupancy + contaminant sensing • + no thermal inputs during setbacks • Low-flow/high-performance fume hoods No Yes, where hood density warrants • Fume hood face-velocities 100 FPM 60 FPM (low-flow hoods) • Fume hood face-velocities (unoccupied) 100 FPM 40 FPM (low-flow hoods) • Fume hood auto-closers None Where hood density high • Exhaust stack discharge velocity ~3,000 FPM “Smart controls” minimize stack discharge • airspeed when wind conditions allow • Lab illumination power-density .9 watt/SF .6 watt/SF w/LED task lighting • Fixtures near windows on daylight sensors Yes Yes • Energy Star freezers & refrigerators Yes Yes • Out-perform CA Title 24 20-25% 50%

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