Abstract
The formaldehyde emission from wood furniture have large influence upon indoor air quality. In this study, a simple large scale chamber was developed for measuring chemical emission from actual-sized furniture. Mass transfer coefficient and sink rate were examined. Formaldehyde emission from five wood products were measured by both large chamber and 20 L small chamber at same n/L condition. The results gave consistent formaldehyde concentration between both chambers. Air stirring in large chamber increased formaldehyde emission from bookshelf-shaped specimen, although it did not effect emission from flat-formed specimen. Formaldehyde emission from wooden furniture was measured by the large chamber. Most of newly made furniture gave comparatively low emission. Some of school furniture considered to be made approximately 10 years ago showed high emission.
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