Patent ID: 8745817

Claim:
A vacuum cleaner comprising: a housing that bounds therein a motor compartment and a bag compartment, which bag compartment is configured and adapted to receive a primary filter bag, wherein said housing includes a rim positioned outwardly from an opening of said bag compartment; a bag compartment lid that is movable relative to said bag compartment and said motor compartment between a closed position in which said lid covers said opening of said bag compartment and an open position in which said lid uncovers said opening of said bag compartment; and a secondary motor protection filter comprising a filter element supported by a frame made of an elastic material; wherein: said bag compartment lid has a groove therein, said frame of said motor protection filter has a protruding spline that is removably received in said groove, and said frame seals said motor protection filter to said bag compartment lid, said frame of said motor protection filter has a seal surface on a side thereof opposite said spline, and said seal surface of said frame sealingly contacts said rim of said housing when said lid is in said closed position, and an air passage is formed between said lid and said motor protection filter, and communicates with said motor compartment.