I clean my guns with 70% alcohol and warm water daily and use the "professional"
airbrush cleaner monthly or particularly after a heavier than normal week of sprays. I figure I save in the long run and take care of my equipment. I also clean my client dusting brush with 99% alcohol and/or Sephora brush cleaner. Brushes for contouring are single use only. Glad to hear that others use alcohol I kept reading about warm soapy water and that just didn't seem enough for me.
Happy Tanning!