Has anyone used a cartridge places in an air line? It claims to reduce dust on a finished product. When the air line is used to blow off the piece before spraying, elements in the cartridge charge the air, making it electrically conductive. In turn this charged air pulls the static electricity from the panel preventing dust to be attracted.

With some sometimes tortuous explanations, the author discusses the issue of static electricity generation in ductwork. He uses logic, basic physics, and some equations to describe electron density, migration, and grounding within typical 4" PVC ducting attached to dust collectors. He concludes that it is effectively impossible for the static charge inside the duct to cause a spark, combustion, or explosion within the flowing air and entrained wood chips. I think he said (I read it a few minutes at a time, when time allowed) that it is entirely possible to receive a static shock from the outside of the ducting.