filter sponge is used for filter smell and pollute in the air,it has a large capacity of dust,also filteration fog,funk etc..

filter sponge is usually used for filteration smell and pollute in the air. especially it has a large capacity of dust,also filteration fog,funk,peculiar smell,carbinol,bacilli and so on.also it is usually used for ventilator sport filtering the air,filteration material:actived carbon grain/filteration sponge and so on        

filter sponge (FC-001)