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Fungal colonisation of porous air handling components: evaluation of biostatic treatments for air filters and fibreglass duct liner.

Author(s) : PRICE D. L., RAMEY D. L., ABBLITT L. L.

Summary

Several indoor air quality practitioners have cited porous HVAC fibreglass insulation as a potentially dangerous reservoir for hypersensitising and/or toxigenic fungi in centralised air handling systems. Fungal colonisation of unused fibreglass duct liner in the environmental chamber was observed with un-aided vision after about 120 days in the chamber. Acrylic latex paints containing a low solubility phosphated quaternary amine complex applied to the air stream side of the duct liner remained free of fungal colonisation during the same exposure period. Air filters may also provide an amplification substrate for microbes during their in-service life. The addition of a low solubility antimicrobial compound to filter media restricted fungal amplification.

Details

  • Original title: Fungal colonisation of porous air handling components: evaluation of biostatic treatments for air filters and fibreglass duct liner.
  • Record ID : 1996-1133
  • Languages: English
  • Source: 1995 AIRAH Conference Proceedings.
  • Publication date: 1995/05/01
  • Document available for consultation in the library of the IIR headquarters only.

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