Air cleaner

1 . An air cleaner comprising:

a first body having an inlet and an outlet;

a filter provided inside the first body to face the inlet;

a blower fan provided inside the first body and configured to generate an air flow from the inlet to the outlet;

a blower motor provided inside the first body and configured to rotate the blower fan; and

a second body provided over the first body,

wherein the second body includes a button provided at a lower surface of the second body, and

wherein the second body extends further in a horizontal direction than the first body, and wherein the button is located further outward in the horizontal direction relative to a circumferential wall of the first body.

2 . The air cleaner of claim 1 , wherein the button has a convex shape so as to protrude downward relative to the lower surface of the second body or a concave shape to be depressed upward relative to the lower surface of the second body.

3 . The air cleaner of claim 1 , wherein the second body comprises a post detachably coupled to the first body, and

wherein a distance between the button and an outer edge of the second body is less than a distance between the button and the post.

4 . The air cleaner of claim 1 , wherein the second body decreases in thickness toward in the horizontal direction away from a center of the second body.

5 . The air cleaner of claim 1 , wherein the air cleaner comprises a plurality of the buttons, and wherein the plurality of buttons are provided along the lower surface of the second body in a circumferential direction, and wherein the plurality of buttons are positioned closer to an outer edge of the second body than to a center of the second body.

6 . The air cleaner of claim 1 , wherein the air cleaner comprises a plurality of the buttons and a connecting rod that connects the plurality of buttons, and

wherein the connecting rod obliquely connects at least two of the plurality of buttons along a circumference direction of the second body.

7 . The air cleaner of claim 1 , wherein the outlet is open upward on an upper surface of the first body,

wherein the second body has a guide wall that is provided over the outlet and extends laterally outward and faces downward, and

wherein the button is located farther outward in the horizontal direction relative to the outlet.

8 . The air cleaner of claim 7 , wherein the guide wall of the second body extends further upward at increasing lateral distances from a center of the second body, and

wherein an outer surface of the button inclined at an angle corresponding to an angle at which the guide wall extends.

9 . The air cleaner of claim 7 , wherein the guide wall of the second body is a curved surface that is bent upward and extends along the lateral direction, so that a curvature of the guide wall increases toward an edge, and

wherein at outer surface of the button is inclined at an angle corresponding to the curvature of the guide wall.

10 . The air cleaner of claim 1 , wherein the air cleaner comprises a plurality of the buttons, and

wherein the plurality of buttons includes a first button that is convex downward and includes an outer surface that protrudes further than the lower surface of the second body, and a second button that is concave upward and includes an outer surface that is depressed such that the outer surface of the second button extends further upward than the lower surface of the second body.

11 . The air cleaner of claim 1 , wherein the air cleaner comprises a plurality of the buttons, and

wherein the plurality of buttons include a first button having a first shape and a second button having a second shape when viewed from below.

12 . The air cleaner of claim 1 , wherein the second body further includes an indicator light provided at an upper surface of the second body, and

wherein the indicator light is vertically aligned with and over the button.

13 . The air cleaner of claim 12 , wherein the air cleaner includes a plurality of the buttons,

wherein the plurality of buttons are spaced apart from each other along a circumference of the second body, and

wherein the indicator light is vertically aligned with and over at least one of the plurality of buttons.

14 . The air cleaner of claim 12 , further comprising a cover plate covering the second body,

wherein the cover plate has a slot at which the indicator is provided, and

wherein the button is provided under and vertically aligned with the slot.

15 . The air cleaner of claim 14 ,

wherein the indicator light includes:

a lamp configured to emit light;

a lamp housing in which the lamp is provided, the lamp housing being positioned in the slot of the cover plate; and

a substrate having a first surface to which the lamp is connected, and

wherein an inner surface of the button is faces a second surface of the substrate.

16 . The air cleaner of claim 15 , further comprising a button sensor provided on the second surface of the substrate and configured to detect when the button is depressed.

17 . The air cleaner of claim 16 , wherein the inner surface of the button includes a rib that extends toward the button sensor.

18 . The air cleaner of the claim 1 ,

wherein the button is positioned relatively closer to an outer edge of the second body than to a center axis of the first body.

19 . The air cleaner of claim 1 , wherein the button is a first button, and the second body includes a second button positioned at the lower surface of the second body, and wherein an outer surface of the first button is convex, an outer surface of the second button is concave, and the outer surfaces of the first and second buttons have different shapes.

20 . An air cleaner comprising:

a first body having an inlet and an outlet;

a filter provided inside the first body to face the inlet;

a blower fan provided inside the first body and configured to generate an air flow from the inlet to the outlet;

a blower motor provided inside the first body and configured to rotate the blower fan; and

a second body provided over the first body,

wherein the second body includes a button provided at a lower surface of the second body,

wherein the outlet is open upward on an upper surface of the first body,

wherein the second body has a guide wall that is provided over the outlet and extends laterally outward and faces downward, and

wherein the button is located farther outward in a horizontal direction relative to the outlet.