National Research Council of Canada. NRC Institute for Research in Construction
Three strategies for achieving acceptable indoor air quality are ventilation, source control and cleaning/filtration. The performance and energy efficiency of a ventilation system is affected by air distribution, air leakage and local exhaust. Wind blowing around and over a building can play havoc with air distribution. Air leakage can waste much energy. Where a contaminant source such as a photocopier is present, a local exhaust has to be installed, because in such circumstances ventilation alone cannot ensure acceptable air quality. For office buildings and schools, in which occupancy varies over a 24-hour period, demand-control ventilation based on C02 levels may work well.
Conseil national de recherches du Canada. Institut de recherche en construction
Solution constructive, no. 33 (1 December 1999).
Shaw, C. Y. ‘Factors Affecting the Performance of Ventilation Systems in Large Buildings’. National Research Council of Canada. Institute for Research in Construction, 1 December 1999. https://doi.org/10.4224/40002840.