The psi setting should be between 40 to 60. Make sure that your compressor is rated for the type of work you are going to be doing. In this case it will be airbrushing t-shirts. When doing airbrush art onto t-shirts as a business then invest in a commercial air compressor. It will be worth it in the long run. The kit runs around $544 where as individually purchased these items would cost you around $639. For those of you who have experience in airbrush art tattoos and want a kit that will allow you to open up your own business doing airbrush art tattoos professionally, Airbrush Bodyart has you covered. They offer the Airbrush Volume Parlor 2000 kit. Also equipment in is not taken care of and cleaned will not produce quality airbrush art. First let's look at how to clean your airbrush. One rule of thumb to remember is the type of cleaner you use will depend on the type of paint you use. Solvent based paints should be cleaned with a solvent based cleaner. Since the artist can attach the cup to the bottom of the airbrush the colors can be changed quickly by using different cups prefilled with the colors needed. Airbrush art also uses airbrushes with a side feed. The side feed has a cup that mounts on the side. Since the side feed can be rotated the artist can airbrush either horizontal or vertical. So the choice is yours as to whether or not you want the handle on or off of your airbrush while you are creating airbrush art. Pay special attention to the threads on your airbrush. The threads are located on the head assembly and where the air hose connects to your airbrush. If these threads should ever become cross-threaded then you could end up with an air leak. Usually this paint is referred to as body art paint or airbrush tattoo ink. Both forms are basically the same and maintain a realistic tattoo look. This paint will last and is waterproof. To remove you will either just let time take its course and the tattoo fade or rub with baby oil to remove. To help you tattoo last longer apply talc powder daily.