Abstract: An air purifier includes a first pot; a second pot and a fan suitable for creating an air flow between the inside and outside of the air purifier. The second pot which is provided with a bottom and is housed inside the first pot in which the lateral walls of the second pot are formed by a plurality of ribs which extend in the vertical direction of the pot and in which adjacent ribs are arranged essentially parallel to each other, creating slots between them essentially of the length of the ribs. A gap is formed between the first pot and the second pot which extends preferably along the entire length of said slots. The use of the air purifier is also disclosed.