Air cleaner

An air cleaner comprising:

• a first housing including an inlet and an opening;
• a second housing including an outlet and an opening that is opposed to the opening of the first housing;
• and
• a filter element arranged between the opening of the first housing and the opening of the second housing,
• wherein at least one of the first housing and the second housing includes
• a corner portion that is constituted by at least two mutually intersecting inner surfaces of the housing,
• a sound reducing member, which includes a sound absorbing portion made of an air permeable material and is arranged inside the housing, wherein the sound reducing member bridges the at least two inner surfaces and covers the corner portion, and
• an air chamber, which is defined between the sound reducing member and the corner portion, wherein
• the sound reducing member includes a covering layer, which is arranged on a surface of the sound absorbing portion that is opposite to the air chamber, and
• the covering layer is made of an air permeable material having a lower air permeability than that of the sound absorbing portion.