The cyclone chamber may comprise a cyclone air inlet, a cyclone air outlet and a dirt outlet.

The vacuum cleaner includes a primary cyclone unit (100), a secondary cyclone unit (120), and a passage partition unit (131) formed between the primary cyclone unit and the secondary cyclone unit.

The first cyclone stage comprises a cyclone chamber and a first dirt collection chamber.

The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber.

The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber.

In addition, a dust container (140) is detachably coupled to the primary cyclone unit (110) or the secondary cyclone unit (120).

This invention is directed to a cyclonic vapor/liquid contacting device.

The cyclonic air intake device comprises multiple cyclonic air intake tubes (3) which distributed around the vessel wall uniformly.

The inlet duct (13) carries fluid to the first cyclone stage, and the outlet (14) duct carries fluid from the second cyclone stage.

The cyclonic inlet chamber (18) has an involute configuration.

In some embodiments, the assembly includes a cyclonic separator.

Remember to avoid the cyclone season (October - November).

The sucked air is primarily filtered in the primary cyclone unit (110), and secondarily filtered in the secondary cyclone unit (120), thereby improving the cleaning performance.

Separation may be carried out by sedimentation, cyclone separation or flotation.

The vessel is shaped to facilitate a cyclonic or substantially cyclonic flow of the contents within the vessel.