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 E-Mail Alexandria, Va., USA Carbon dioxide (CO2) is a byproduct of human metabolism and exists in high levels in exhaled air, and is therefore often used as a proxy for indoor air quality. The study Ventilation Assessment by Carbon Dioxide Levels in Dental Treatment Rooms, published in the Journal of Dental Research (JDR), evaluated CO2 levels in dental operatories and determined the accuracy of using CO2 levels to assess ventilation rate in dental clinics. Researchers at the University of Rochester, Eastman Institute for Oral Health, N.Y., USA, conducted CO2 concentration and ventilation rate assessments in 10 closed dental treatment rooms with varying air change rates by ventilation. Mechanical ventilation rate in air change per hour was measured with an air velocity sensor and air flow balancing hood.

United statesAl iskandariyahNicholas jakubovicsNewcastle universityJournal of dental researchUniversity of rochesterInternational association for dental researchAmerican association for dental researchEastman institute for oral healthCarbon dioxide levelsDental treatment roomsDental researchEastman instituteOral healthChief nicholas jakubovicsImpact factor