For many years, duct products have often involved significant on-site measurement and construction, bringing certain advantages and risks. Here, that practice is com-pared to the use of listed ductwork, with an eye on duct integrity, hood connections, clearance to combustibles, fire ratings, and more.

Most people are well aware that outdoor air pollution can damage their health, but many are not aware of the serious harm that indoor air pollution, or contamination, can also cause.

Recent technology advancements have resulted in high heat producing hardware pushing the envelope of traditional air cooling methodologies.

Happy new year, readers! And a sincere thanks for making time to include ES in your professional life.

Alex Carroll and Rich Banta, owners of Indianapolis-based LifeLine Data Centers, are open to new and big ideas.

At Walter Reed National Military Medical Center, the mission was an air handling overhaul without interrupting the usual delivery of care. The project team delivered a safer, upgraded environment via a new desiccant system, air handlers, increased flexibility in the surgical suites, and more.

I will close out 2014 with this final column about how to avoid excessively long commissioning action lists (CALs).

Does an old-school concept deserve consideration for a wider range of projects these days? After a refresher on the basics, warm up to a variety of current tips and advantages for maintenance, controls, and installation.

With this year coming to an end and a new business year starting next month, this is a good time for a first-time manager to stop and take one last look at her first year business plan and assess how things went relative to the company’s goals; the employees within the group’s goals; and the group’s sales, revenue, and operating budget.

Almost every month, something worthwhile comes in right as I’m writing this page.