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when compared to other traditional Type B2 cabinets. In fact, the combined savings in electricity, conditioned air removal, and a reduction in static pressure can potentially reduce the overall annual operational costs by up to 49% (Figure 5). Sustainable Design Results in Reduced Noise Levels In addition to the significant energy savings, the unique design of the BioChemGARD e3 provides safe and quiet cabinet operation. A recent article found in one of our industry’s common trade publications asserts that, “Excess noise is not a good thing… background noise from HVAC systems or other laboratory activities can become insidious. It can make conversation difficult, affect concentration, distract workers and increase fatigue not to mention the potential adverse effects on other support personnel who enter the area.” 8 The BioChemGARD e3 is the quietest Type B2 total exhaust BSC currently on the market, providing an optimal work environment for laboratory personnel. NSF International tested the cabinet at 59 dBa, which includes readings for both an exhaust system and the cabinet itself. The cabinet itself yields a level of
etween the NC scale of noise and the dBa scale, according to a noise rating curve utilized by industry professionals, the NC 45 equates approximately to 53 dBa. 10 The BioChemGARD e3 is the only total exhaust cabinet capable of meeting that recommendation. Conclusion Based on six decades of research and innovation, the BioChemGARD e3 has been optimally designed to provide superior energy efficiency without compromising performance. Designed for sustainability, the BioChemGARD e3 combines innovative technology with reduced airflow characteristics that allow laboratories and facilities to achieve a major reduction in energy consumption, while increasing the performance, safety and protection of its users. With a performance profile that is unparalleled in the industry, the BioChemGARD e3 utilizes significantly less energy than any other Type B2 total exhaust cabinet registered with NSF International, potentially providing a laboratory or facility with annual operation cost savings of up to 49%. References 1. U.S. Environmental Protection Agency, U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Federal Energy Management Program. Laboratories for the 21st Century: Energy Analysis. April 2003. 2. Laboratory cost ranges determined from customer research performed by The Baker Company in July 2011, available upon request. 3. The Baker Company, 2011. BioChemGARD e3 Model 401 (4’ Nominal) Specification. 4. NSF International [Internet] NSF International; c2004 [cited 2011 July 6]. Available from www.nsf.org. All numbers in this white paper are the average of Type B2 Total Exhaust Cabinets listed on the NSF website. 5. The Baker Company, “The Effects of Changing Intake and Supply Air Flow on Biological Safety Cabinet Performance,” 1990. 6. The Baker Company, “Energy Efficient Biological Safety Cabinet Reduces Energy Costs while Ensuring Safety,” 2008. Available at http://www.bakerco.com/lib/pdf/Low_Flow_whitepaper.pdf. 7.[ACGIH] American Conference of Governmental and Industrial Hygienists. Industrial Ventilation: A Manual of Recommended Practice, 25th Edition, 2004. Cincinnati, OH: American Conference of Governmental and Industrial Hygienists. 8. McCloud, Vince. 2011. Can You Hear Me Now? Laboratory Manager Magazine 6(6): 70. 9. [NIH]The National Institute of Health, [DTR] Division of Technical Resources, [ORF]Office of Research Facilities (ORF)., Design Requirements Manual for Biomedical Laboratories and Animal Research Facilities (DRM). 2008. 10. Engineering Toolbox [Internet] The Engineering Toolbox [Cited January 2012] Available from: http://www.engineeringtoolbox.com/nc-noise-criterion-d_725.html. The Acumen series of technical papers is sponsored as an educational service by The Baker Company. We have selected or commissioned the topics. The findings contained in these papers come from a variety of sources, including our internal testing laboratories, independent laboratories and government agencies. Authors include our internal staff and other industry experts with experience in manufacturing, planning, research and regulation, as well as policy makers who can address industry issues and trends. The findings are released at the discretion of The Baker Company, and are based on the best information available to us at the time of publication. They do not necessarily represent our position on the issues discussed, nor does publication imply either endorsement or verification of the positions taken by the authors. The Baker Company does not assume any responsibility for either individual use or application of this information, but we encourage the reader to advise us of information that bears on these topics so that we may all learn from the experience of others. Copyright© 2012 by The Baker Company P.O. Drawer E, Sanford, Maine 04073 207.324.8773 • 800.992.2537 www.bakerco.com
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