The filter, esp. for a vacuum cleaner, has at least one additive to kill bacteria or suppress smell, contained within a cushion cover inserted in the air flow path before a filter layer.
申请公布号
DE4418720(A1)
申请公布日期
1995.11.30
申请号
DE19944418720
申请日期
1994.05.28
申请人
LICENTIA PATENT-VERWALTUNGS-GMBH, 60596 FRANKFURT, DE
