When replacing the deionising filter in my hydrogen generator how do I dispose of the waste filter? You can dispose of it in any bin. There are no chemicals in it. Can't find what you are looking for? Contact us here or phone your local tech support help centre. Related articles How quickly does silica gel in the Precision Hydrogen generator saturate? What are the maintenance requirements for the Precision Hydrogen generators? Why does the Precision Nitrogen Trace generator require two or more warm-up times? Can you shorten this time? Comments 0 comments Please sign in to leave a comment.