Can gas stations refill compressed air cans for airbrushing?
I don’t think compressed air cans can be refilled as they are made to be disposable. However, you can purchase a small air compressor at most hobby shops for a reasonable price. Having an air compressor gives you greater control over the amount of air you use with your airbrush and gives you a continuous controlled amount. I started airbrushing with air cans and bought my own air compressor after a short while. I have several different airbrushes and wouldn’t ever go back to using cans.