The present invention relates to a vacuum filter bag comprising a layer
containing immobilized odor-retaining particles characterized in that the
abrasion loss of said odor-retaining particles caused by an air flow of
90 cm/s through a 200 cm.sup.2 specimen of said layer for two hours,
measured in accordance with DIN 44956 T2, is 0 to 10% by weight of the
total odor-retaining particles present before starting the air flow. The
vacuum filter bags of the invention have a high dust holding capacity and
an excellent long lasting odor removing effect.