Purification Cup

Purification cups have proven their worth in preventing crumbs from clogging the airbrush.
As a nylon fabric which is glued between the two printed parts, you can use a large color filter, which is included with resin or can be bought cheaply in a multipack. From 1 color filter you can create 4 filters for purification caps.
This purification cup fits on standard 4ml cups, in my example on the Infinity from Harder & Steenbeck.