Emissions from different types of used ventilation bag filters and their impact on perceived air quality

The purpose of this study was to investigate the sensory emission load from an alternative ventiltion bag filter with activated charcoal lining and to compare it with a used bag filter. The two types of filter have been used during three months in the same building, under the same conditions. Samples have been sent to a controlled laboratory environmentfor chemical measurements. The results confirmed that the sensory pollution load of the alternative filter is significantly lower than the commonly used ventilation bag filter.