An investigation into the air quality of three working men's clubs.

Working men's clubs are commercially thriving organisations catering for a wide range of social activities commonly held in a single room holding 300-400 people. Packaged air conditioning is being introduced into Working Men's Clubs to provide air recirculation and cleaning when the buildings are occupied. Air cooling and dehumidification is also available. One club was dissatisfied and an investigation was started to investigate the difference. Measurements showed that the unsatisfactory installation was unusual in two ways. First the fresh air supply rate was lower than the design due to the airtightness of the building and the number of air locks to the outside. Second the cigarette consumption was particularly high.