the puddle of liquid and plunges into the bottom of the liquid containing part 2 a container bottom accordingly the entire liquid puddle is also strongly agitated and mixed in a spiral manner so as to bubble swell and increase in volume as if the polluted air pa is washed by the liquid a therefore the polluted air pa taken into the container main body 2 is allowed to contact the liquid a with extremely high efficiency accordingly it is possible to remove pollutants such as dust dirt molds ticks pollens and the like in a highly efficient manner in addition if the liquid a is sterilizing fluid it is also possible to kill and remove pollutants such as viruses germs and the like in a highly efficient manner if the liquid a is deodorant fluid it is possible to eliminate bad odors of cigarette formalin and the like in a highly efficient manner if the liquid a is water it is possible to remove dust from construction sites plants and the like in a highly efficient manner besides if the polluted air pa taken in from the air inlets 5 5 is hot wind for example the hot wind can be cooled down by airborne droplets of the liquid a colliding with and.