i am using those gel type charcoal and it should not be having dust. But since it is those gel gel with liquid content, i am afraid that the cabinet have to work harder to maintain the RH level, so i drop that idea and took out the gel charcoal already.
Scented thirsty hippo got is scented, looking to rid any smell instead of having another scent.
Suddenly thought of ioniser. Hahahahha