This refill pack of 20 filters is meant to be used with the BodyChoice Aroma Diffuser.  To use the filter, add a few drops of your favorite essential oil or scented oil directly onto the top of it, remove the filter basket from the bottom of the unit, place the filter into the filter basket and replace the filter basket back into the unit. 

Note:  If any essential oil remains on the filter and you wish to use it again, simply place it into a sealable plastic bag and store in a cool, dry place.