PROBLEM TO BE SOLVED: To provide an air cleaner, efficiently removing floating substances (e.g., dust, smoke, pollen, bacteria, mold, allergen virus and the like) in a room and having a large air capacity and low noise.SOLUTION: In the air cleaner including: a body 1 in which an air inlet port 2, an exhaust port 3 and a draft passage part 12, in which the air inlet port 2 and the exhaust port 3 are communicated with each other, are formed a blower fan 4 which is provided in the draft passage part 12, takes in air from the air inlet port 2, and ejects the air from the exhaust port 3 a filter 5 which is provided in the draft passage part 12, and removes dust in the air taken from the air inlet port 2 into the body 1 and an electrostatic atomizer 7 atomizes and radiates charged water droplets W3 made from water and nano colloid into the draft passage part 12 wherein air including the charged water droplets W3 is ejected from the exhaust port 3 toward an air inlet side of the air inlet port 2 by the blower fan 4.
