I just ordered two of these and inside the mouth piece that you can remove it's just an empty cartridge. There is no cotton or whatever material that's usually in the cartridge.
Does this mean I need to order real cartidges since these cam with blanks or would I be able to just use cotton from my cotton swabs and fill the cartridge with that and use it?
Does this mean I need to order real cartidges since these cam with blanks or would I be able to just use cotton from my cotton swabs and fill the cartridge with that and use it?