Air Quality of Polystyrene, Steel, PVC and Wooden Ventilation Ducts

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Abstract

A study was performed to investigate the indoor air quality of ventilation ducts, cut or milled directly in the outside thermal insulation of houses as part of a renovation concept. Measurements and subjective evaluations were conducted to study the impact of the polystyrene ventilation ducts, compared to steel, PVC and wooden ducts, on the air quality. Surface roughness of the inside of the polystyrene ducts seems to influence both the measured and the perceived air quality.

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