Precision cleaning of components for removal of NVR and particulate requires
fine filtration of both the air supplied to the spray chamber as well as the
alcohol supplied to the cleaning gun. Air is supplied to the spray chamber
through HEPA filters providing approximately Class 100 air.
The alcohol filtering subsystem filters inlet alcohol supplied to the spray
gun/nozzles and outlet alcohol from the spray chamber's small alcohol storage
tank. Particulate, but not molecular contamination is filtered using this
subsystem. Filter sizes used are dependent on the final hardware cleanliness
desired.
