US Patent 11745190 Surface cleaning apparatus

A surface cleaning apparatus comprises an air treatment chamber having a first end comprising a first end wall, an axially spaced apart second end comprising a second end wall, a sidewall extending between the first and second end walls, an air treatment chamber air inlet and an air treatment chamber air outlet provided at the second end. A dirt collection region, which is contiguous with the air treatment chamber, is positioned axially from the first and second end walls and is closer to the second end wall than the first end wall.