Air purifier

An air purifier comprising:

• (a) a first pot;
• (b) a second pot provided with a bottom and being housed inside the first pot, wherein lateral walls of the second pot are formed by a plurality of ribs extending in an axial direction of the second pot, and wherein adjacent ribs are arranged essentially parallel to each other, creating slots therebetween, the slots being essentially a length of the ribs, and wherein a gap is formed between the first pot and the second pot, the gap extending at least along the entire length of said slots;
• and
• (c) a fan suitable for carrying out an air flow between an inside and an outside of said air purifier,
• wherein the bottom of the second pot extends in a horizontal direction from an inside surface of the lateral walls of said second pot at a point located above a bottom of the lateral walls in the axial direction,
• wherein the ribs are arranged around said bottom of the second pot extending beyond the bottom of the second pot downwards to admit an air flow along said slots from part of said second pot located above the bottom of the second pot towards part of said second pot located under the bottom of the second pot and creating a space under the bottom of the second pot inside said lateral walls, and the bottom of the second pot forming an upper surface of the space,
• wherein said air purifier further comprises:
• (d) an air permeable photocatalytic filter arranged between the bottom of the second pot and the fan;
• and
• (e) a light source for activating the catalyst of the photocatalytic filter, and wherein the photocatalytic filter is arranged in the space created under the bottom of the second pot inside the lateral walls of the second pot.