@inproceedings{1796fdd7e7fe49f3b6c6a8f7c86fe5f3,
title = "Visual method for evaluation of cleanliness of air duct.",
keywords = "air duct, cleanliness level, visual cleanliness scale, visual inspection form, air duct, cleanliness level, visual cleanliness scale, visual inspection form, air duct, cleanliness level, visual cleanliness scale, visual inspection form",
author = "Rauno Holopainen and Marianna Tuomainen and Jarkko Narvanne and Pertti Pasanen and Olli Sepp{\"a}nen",
year = "2002",
language = "English",
pages = "682--687",
booktitle = "The 9th International Conference on Indoor Air Quality and Climate {"}Indoor Air 2002{"}, June 30 - July 5, 2002, Monterey, California. Vol 1",
}