Investigation of a respiratory disease associated with an air-conditioning system

Clin Allergy. 1976 Mar;6(2):109-118. doi: 10.1111/j.1365-2222.1976.tb01888.x.


This paper describes the investigation of respiratory disease presenting in a group of men employed on the printing floor of a factory. The air-conditioning units supplying this floor were found to be contaminated with a variety of micro-organisms. The specific cause of the disease was not identified but an alteration in the system of humidification led to the complete resolution of symptoms.

MeSH terms

  • Aged
  • Air Conditioning*
  • Air Microbiology*
  • Humans
  • Male
  • Middle Aged
  • Occupational Diseases / diagnosis
  • Occupational Diseases / etiology*
  • Precipitin Tests
  • Respiratory Function Tests
  • Respiratory Tract Diseases / diagnosis
  • Respiratory Tract Diseases / etiology*
  • Skin Tests
  • Trichoderma / isolation & purification