That was the striking title of a piece in Time magazine

The public health section of the respected magazine took evidence from Dr. Stan Cox, author of ‘Losing Our Cool: Uncomfortable Truths About Our Air-Conditioned World’ and from Dr. Mark Mendell, an epidemiologist with the California Department of Public Health.

The article is nicely balanced: it points out some of the risks that dirty, poorly maintained air conditioning systems bring while also highlighting that a well designed and maintained HVAC system can be protective against polluted ambient air

The article cites Dr Mendell’s work on the potentially subtle ill-effects on people of micro-organisms in HVAC, including fully ducted office air supply systems. Readers may like to jump into the rabbit hole that is PubMed’s archive of biomedical literature!

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