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Matthew Freije

Matthew freije Freije is president of HC Information Resources Inc. (Carlsbad, CA, He is an author, course instructor, and consultant specializing in Legionella and other waterborne pathogens. Freije earned a B.S. degree in mechanical engineering from Purdue University, a Water Treatment Plant Operations Specialist certificate from California State University, Sacramento, and is a Certified Water Specialist. He is the editor of Legionella Enews, an international newsletter that covers outbreaks and new technology. His book, Legionellae Control in Health Care Facilities: A Guide for Minimizing Risk, has sold in more than 30 countries. Portions of this article were excerpted from Freije’s recent publication Legionella Management Plan for Hotels.


Eight Ways To Keep Legionella Out Of Your Air Distribution

February 1, 2008
Humidification, air intake location, and cooling tower operation - these three components continue to require vigilance in preventing Legionella from cropping up. Smart choices, from design through ongoing maintenance, can prevent problems and protect health.

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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
3/27/14 11:00 am EST

How to Calculate Backup Power Supply Requirements for Your Facility

On-Demand This webinar reviews how to determine power requirements of facility loads; electrical characteristics and impact of different types of loads such as large motors and UPS systems on power supply sizing; acceptable power sources and other constraints applied by building codes; and how software tools can be used to simplify the process of calculating backup power requirements.  


Engineered Systems Magazine

ES April 2014 cover

2014 April

Check out the April 2014 issue of Engineered Systems, with features on backup power supply requirements, cyberattacks, and much more!

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Design Flaws

Following up on Howard McKew's April "Tomorrow's Environment" column: Have you ever thought twice about reporting problems with another firm's design? What did you do?
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The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

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Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!


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