PROBLEM TO BE SOLVED: To provide an air cleaner with a function of removing radioactive materials such as cesium capable of reducing a dosage exceeding an indoor regulation value to less than or equal to the regulation value or zero in a dwelling house or the like and reducing a dosage in a decontamination work place to less than or equal to the regulation value or zero.SOLUTION: An air cleaner with a function of removing radioactive materials sucks air including floating radioactive materials such as cesium by a suction fan and causes the radioactive materials to collide with an aqueous solution of cypress in a tank 2 or an aqueous solution 6 prepared by blending slightly acid electrolysis water with ferric ferrocyanide in the tank, or atomizes the aqueous solution and spraying the aqueous solution into the air to remove radioactive materials such as cesium, and harmful materials such as contaminant, dust, dirt, mold, tick, pollen, and aldehyde.COPYRIGHT: (C)2013,JPO&INPIT【課題】住宅等において、室内規制値を超す被ばく量を規制値以下もしくはゼロにし、除染作業場所等の被ばく量を規制値以下もしくはゼロにする、セシウム等放射性物除去機能付き空気清浄器を提供する。【解決手段】浮遊しているセシウム等放射性物質を含む空気を吸引ファンで吸引し、タンク2内のヒノキ水溶液もしくは微酸性電解水とフェロシアン化鉄をブレンドした水溶液6に衝突させるかもしくは水溶液をミスト状にして空気中に噴霧することで、セシウム等放射性物質、ゴミ、埃、塵、カビ、ダニ、花粉アルデヒドなど有害物質などを除去する。【選択図】図1