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Sick Building Syndrome

How Well Can Higher Efficiency Filtration Control Particles at High Ventilation Rates in Offices?

January 6, 2016

Air Media Magazine, Winter 2016 By Michael S. Waring, PhD Ventilation rates in buildings have been traditionally defined by their minimum rates, which are the lower limits to maintain acceptable indoor air quality. For instance, at default occupant densities in offices, the American Society for Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) recommends in Standard 62.1 …

Read moreHow Well Can Higher Efficiency Filtration Control Particles at High Ventilation Rates in Offices?

Is CO2 Indoor Pollutant?

September 21, 2015

Air Media Magazine, Summer 2014 By William J. Fisk, Fellow ASHRAE, Usha Satish, Mark J. Mendell, Toshifumi Hotchi, Douglas Sullivan (Editor’s Note: This article is reprinted with permission from the ASHRAE Journal.) Because humans produce and exhale carbon dioxide (CO2), concentrations of CO2 in occupied indoor spaces are higher than concentrations outdoors. As the outdoor …

Read moreIs CO2 Indoor Pollutant?

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