Dirty Electricity from LEDs

Dirty Electricity from LEDs People interested high fidelity sound systems or low-EMF environments want to minimize electromagnetic interference (AKA: EMI, High-Voltage Transients, Electrical Noise, and Dirty Electricity) from lighting systems. Compact fluorescent lightbulbs (CFLs) – the curly pig tail variety with some mercury in them – are notoriously “dirty” and create significant EMI (Electromagnetic Interference).
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IAQ Issues LEED Building San Francisco – Part Two

IAQ Issues LEED Building – Part Two As a healthy building inspector and industrial hygienist, I have performed several pre-occupancy IEQ tests to the LEED standard and specifically for LEED certification. I am familiar with both the testing and flush out options and IAQ issues related LEED Building certification. The flush out option is most
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IAQ Issues in a LEED Building – Part One

Air Quality Problems in the EPA’s San Francisco LEED EBOM Building IAQ Issues in a LEED Building Part ONE At the end of February 2016, NBC ran a segment investigating whether the EPA Region 9 building, at 75 Hawthorne Street in downtown San Francisco, was a Sick Building. All answers pointed to yes. In the
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Architectural Design – Mold Free Guarantee?

During one of my many presentations on Building Enclosure Commissioning to architecture firms, I had a question from an architect echoing the concern in many professionals’ minds about mold. The architect in question wondered if there is any way to guarantee “on paper” that mold will never occur in an assembly. Architectural design mold free
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Who is Healthy Building Science?

We are an environmental consulting firm based in the San Francisco Bay Area, a group of scientists working to make your indoor spaces healthier. We test your building or property to find harmful pollutants.
Healthy Building Science

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