Handheld vacuum cleaner

A vacuum cleaner comprising:

• a fluid flow path extending from a dirty air inlet to a clean air outlet;
• a main body including a handle;
• a fluid flow motor positioned in the fluid flow path;
• a dirt collection region;
• a cyclone chamber in the fluid flow path, the cyclone chamber including,
• a first end wall, a second end wall, and a sidewall extending along a cyclone axis,
• a cyclone dirt outlet formed in the sidewall,
• a cyclone dirty fluid inlet, and
• a cyclone clean fluid outlet;
• and
• a duct extending between the cyclone dirt outlet and the dirt collection region, the duct including an upstream wall and a downstream flow-diverting wall forming a downstream boundary of the cyclone dirt outlet, the downstream flow-diverting wall intersecting the fluid flow path adjacent the second end wall, wherein the upstream wall is not tangentially aligned relative to the sidewall,
• wherein the second end wall has an inner portion and an outer portion, the outer portion being offset from the inner portion in a direction away from the first end wall and the flow-diverting wall connecting the inner portion and outer portion of the second end wall bounding the downstream end of the cyclone dirt outlet.