Recently Paris started enforcing new commuting rules in an effort to reduce smog in the City of Light. Key cities in China, including Beijing and Shanghai, have suffered from poor air quality for some time and now their largest travel agency is offering tourists smog insurance, according to The Guardian. Many of us are aware that outdoor air quality, especially near major cities, may be less than ideal, but what about indoor air quality? Author Russell McLendon states in 7 Reasons to Consider Indoor Air-Quality Testing , “While we tend to think of air pollution as an outdoor threat, it can be even worse inside the buildings where we live and work.” Bacharach IEQ Chek™ Indoor Air Quality Monitor with CO2 sensor, range 0 to 20% vol, with pump Sick building syndrome, as defined by the EPA, can create health and comfort symptoms in occupants and may be the result of inadequate ventilation and/or chemical or biological contaminants. The...