A hand vacuum cleaner has an air treatment assembly comprising an air treatment chamber, the air treatment assembly comprising a central longitudinal axis that extends centrally through the air treatment assembly from a front end of the air treatment assembly to a rear end of the air treatment assembly, the air treatment assembly having a front openable door, a sidewall extending between the front end of the air treatment assembly and the rear end of the air treatment assembly and a discrete volume is provided between the front openable door and an interior dirt collection region of the air treatment assembly.

A cyclonic separation system for a cleaning apparatus includes a suction source. A suction inlet is in fluid communication with the suction source for capturing debris materials. A recovery tank defines a collection chamber in fluid communication with the suction inlet and the suction source. A filter housing is disposed between the collection chamber and the suction source. A rotating deflector is operably coupled with the filter housing and disposed within the collection chamber. The suction source is configured to generate a cyclonic airflow within the collection chamber for separating the debris materials from working air. The rotating deflector is configured to rotate about a central axis of the recovery tank in response to the cyclonic airflow.

A cleaning system includes a base station, a vacuum cleaner, and a primary lock and an unlock mechanism. The vacuum cleaner includes a dust cup assembly including a dust cup and a covering door, the dust cup is formed with a dust collection chamber and a dust discharge opening communicated with the dust collection chamber, and the covering door can selectively open or close the dust discharge opening. The primary lock is disposed at a junction between the dust cup and the covering door for selectively locking or unlocking the covering door. The unlocking mechanism includes a primary unlocking member and a secondary lock. When the vacuum cleaner is docked with the base station, the primary unlocking member enables the primary lock to unlock the covering door, and the secondary lock can selectively lock or unlock the covering door.