Disposable cartridges for electrospraying applicators, systems, and methods thereof

A nozzle housing for a disposable fluid delivery system of an electrostatic applicator, the nozzle housing comprising:

• an air supply inlet port configured to be in fluid communication with and receive a nozzle end of an air supply tube;
• a voltage cavity port configured to receive a tube with a voltage wire;
• and
• a delivery outlet at a distal end of the nozzle housing opposite a luer inlet port, the delivery outlet configured to receive a delivery tube of a luer of the disposable fluid delivery system and in fluid communication with the air supply inlet port, wherein a proximal end comprises a tubular shape configured to mechanically attach to an outer surface of the voltage tube in a friction fit.