Patent ID: 7647670

Claim:
A vacuum cleaner, comprising: a housing including a nozzle assembly having a suction inlet and a canister assembly having a dirt collection vessel receiver; a suction generator carried on said housing; a dirt collection vessel received in said receiver; a final filtration compartment on said housing, said final filtration compartment including (a) an air inlet having a cross sectional surface area of between about 1950 to about 2150 mm 2 and (b) and air outlet having a cross sectional surface area of between about 1850 to about 2050 mm 2 and, wherein said outlet directs airflow in a first direction and a second direction; and a final filter received in said final filtration compartment, said final filter having a cross sectional surface area of between about 12,300 to about 12,500 mm 2 .