Filtering system

A vacuum cleaner comprising a low velocity chamber with a high velocity air inlet, a motor, a blade driven by said motor to create a vacuum in said chamber, an outlet for exhausting air from said chamber, said air flowing in a selected path from said air inlet, through said chamber and out said air exhaust outlet, the improvement comprising a filter and a filter liner positioned between said air inlet and said motor, said filter liner substantially made of a rigid, noncollapsible material, said low velocity chamber is being contained in a removable canister that is removably positioned on a base of said vacuum cleaner.

A filter liner adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material and including an adhesive which forms a connection between said filter liner and a filter.

A filter liner adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material and including a sealing patch adapted to be positioned over and seal an opening in a side of said filter liner.

A filter liner adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material and including a dust door positioned in an opening in a side of said filter liner and biased in a closed position to substantially close said side opening.

A filter liner and filter combination adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material, said filter adapted to filter out a majority of particles entrained in air as the air passes through said filter, said filter liner and said filter at least partially connected together by an adhesive.

A filter liner and filter combination adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material, said filter adapted to filter out a majority of particles entrained in air as the air passes through said filter, said filter liner including an adhesive which forms a connection between said filter liner and said filter, said adhesive is at least partially covered by a removable strip.

A filter liner and filter combination adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material, said filter adapted to filter out a majority of particles entrained in air as the air passes through said filter, a sealing patch adapted to be positioned over and seal an opening in a side of said filter liner.

A filter liner and filter combination adapted for use in a low velocity chamber of a vacuum cleaner, said filter liner substantially made of a rigid, noncollapsible material, said filter adapted to filter out a majority of particles entrained in air as the air passes through said filter, said filter liner includes a dust door positioned in an opening in a side of said filter liner and biased in a closed position to substantially close said side opening.