Validation of the criteria for initiating the cleaning of heating, ventilation and air conditioning (HVAC) systems under real conditions Abstract The cleanliness of a ventilation system invariably affects the quality of the air that it distributes. However, it is difficult for building managers to assess the relevance of having their systems cleaned and to choose from among all the proposals from cleaning specialists because no objective method exists for evaluating the dustiness of systems. In the context of a previous project, the researchers developed a method for collecting surface dusts in heating, ventilation and air conditioning (HVAC) ducts and identified criteria for initiating cleaning. The method was validated in the laboratory and compared to those methods mentioned in the scientific literature [Association pour la prévention et l’étude de la contamination (ASPEC), of France, and the National Air Duct Cleaners Association (NADCA), of the United States]. They all proved feasible by using their corresponding cleaning initiation criterion.In a new study, which this report describes, the same team validated the criteria for these methods in the ventilation systems of occupied non-industrial buildings. Once again, the results were conclusive. Building managers can now rely on the objective criteria of the offered methods, rather than basing themselves solely on visual inspection, which is subjective. Produced Under this Project Scientific Reports Heating, ventilation and air conditioning – Validation of system cleaning initiation criteria under real conditions Research Report: R-657, R-666 Video Reports and Conferences Validation of the criteria for initiating the cleaning of heating, ventilation and air conditioning (HVAC) systems under real conditions Conference: CF-018 Simplified Articles Des critères objectifs pour déclencher le nettoyage des systèmes Chauffage, ventilation et conditionnement d'air Volume 24, n0 3 Scientific Publications Validation of the cleaning initiation criteria of heating, ventilation and air conditioning (HVAC) systems under real conditionsLavoie J., Geneviève Marchand, Cloutier Y., Beaudet Y., Lavoué J.Source : in Health, Work and Social Responsibility : IOHA International Scientific Conference (8th : September 28 - October 2, 2010 : Roma, Italy), 2010Validation of the criteria for initiating the cleaning of heating ventilation and air-conditioning (HVAC) ductwork under real conditionsLavoie J., Geneviève Marchand, Cloutier Y., Lavoué J.Source : Journal of Occupational and Environmental Hygiene, vol. 8, no 8, 2011, p. 467-472Cleaning initiation criteria for heating, ventilation and air-conditioning (HVAC) systems in non-industrial buildingsLavoie J., Geneviève Marchand, Cloutier Y.Source : DucTales, March-April 2011, p. 36-40Validation of the cleaning initiation criteria of heating, ventilation and air conditioning (HVAC) systems under real conditionsLavoie J., Geneviève Marchand, Cloutier Y., Beaudet Y., Lavoué J.Source : in Montreal International Engineering Forum 2012, (February 9-10, 2012 : Montreal, Canada), 2012L'entretien des systèmes de ventilation: Est-ce utile?Lavoie J.Source : in Souper conférence mensuel de l'ASHRAE, chapitre de Montréal, (13 février, 2012 : Montréal, Canada), 2012 Other Project(s) You May be Interested in Evaluation of Direct Reading Instrument and Filtration Technology Performance to Improve Strategies to Control Workers’ Exposure to Ozone Additional Information Type: Project Number: 0099-6370 Status: Completed Year of completion: 2010 Research Field: Chemical and Biological Hazard Prevention Team: Jacques Lavoie (IRSST)Chantal Dion (IRSST)Yves Cloutier (IRSST)Jérôme Lavoué (Institut universitaire romand de Santé au travail)Geneviève Marchand (IRSST)