Combined particle/adsorption filter for removing odors from an air stream, e.g. in air conditioners, comprises a particle filter layer arranged between two adsorption layers

摘要

Combined particle/adsorption filter comprises a particle filter layer arranged between two adsorption layers (20). Each adsorption layer has a further adsorption layer (32) on a support layer (22). The particle filter layer is made from electrostatically-charged spun fleece (14) which is covered on its main surfaces with electrostatically-charged micro- and/or nano-fibers of opposing electrical polarity.