Ventilation filters and indoor air quality: a review of research from the International Centre for Indoor Environment and Energy.
The presence of a used filter in a ventilation system can have an adverse impact on perceived air quality, SBS symptoms, and performance of office work. The present paper reviews the studies leading to this conclusion and discusses recent work that has been performed in a search for the mechanisms involved. One promising hypothesis involves chemical reactions on the surface of the collected particles in the formation of noxious compounds. Finally, a discussion on engineering solutions is presented.


CONCLUSIONS
Loaded particle filters provide a significant source of air pollution. To counteract this, filters should be changed frequently or an alternative method of removing particles from the air should be applied.
Clausen
G
G
International Centre for Indoor Environment and Energy, Technical University of Denmark. gc@mek.dtu.dk
D016902:Air Pollution, Indoor / Q000517:prevention & control*; D004738:Engineering; D004868:Equipment Failure; D005374:Filtration; D006801:Humans; D010316:Particle Size; D011786:Quality Control; D018877:Sick Building Syndrome / Q000503:physiopathology* / Q000517:prevention & control; D014691:Ventilation