Cyclonic air treatment member and surface cleaning apparatus including the same

A hand vacuum cleaner having a front end having a dirty air inlet, a rear end, an upper end and a lower end, the hand vacuum cleaner comprising:

• (a) an upstream air treatment stage comprising a front end, a rear end, an upstream air treatment chamber, a first longitudinal axis extending between the front and rear ends of the upstream air treatment stage and an air outlet;
• (b) a downstream air treatment stage that is downstream of the air outlet of the upstream air treatment stage, the downstream air treatment stage comprising a front end, a rear end, a downstream air treatment chamber and a second longitudinal axis extending between the front and rear ends of the downstream air treatment stage;
• and,
• (c) a pre-motor filter housing positioned rearward of the downstream air treatment stage, the pre-motor filter housing comprising an air inlet and the air inlet of the pre-motor filter housing is opened when the openable portion is moved to the open position;
• and,
• (d) where in the upstream air treatment stage has an openable portion that is moveable to an open position by a mount comprising a first portion that is provided on the openable portion and a second portion that is provided on a pre-motor filter housing,
• wherein dirt collected in each of the upstream air treatment stage and the downstream air treatment stage is emptyable when the openable portion is moved to the open position.

A hand vacuum cleaner having a front end having a dirty air inlet, a rear end, a longitudinal axis extending between the front and rear ends, a first lateral side on a first side of the longitudinal axis, a second lateral side on a second side of the longitudinal axis, an upper end and a lower end, the hand vacuum cleaner comprising:

• (a) an upstream air treatment stage comprising a front end, a rear end, an upstream air treatment chamber, an air outlet positioned at a rear end of the upstream air treatment chamber and an upstream dirt collection chamber that is exterior to the upstream air treatment chamber;
• and,
• (b) a downstream air treatment stage that is downstream of the air outlet of the upstream air treatment stage, the downstream air treatment stage comprising a front end, a rear end, a downstream air treatment chamber, an air treatment chamber air inlet positioned rearward of the air outlet of the upstream air treatment chamber, a second longitudinal axis extending between the front and rear ends of the downstream air treatment stage and a downstream dirt collection chamber that is exterior to the downstream air treatment chamber,
• wherein, when the longitudinal axis extends horizontally with the upper end of the hand vacuum cleaner above the lower end of the hand vacuum cleaner, the upstream dirt collection chamber comprises a portion that directly underlies the upstream air treatment chamber and is on the first lateral side, the downstream dirt collection chamber comprises a portion that directly underlies the upstream air treatment chamber and is on the second lateral side whereby the portions are positioned side by side.