I was chatting with @MartinGuest about using an airbrush in kitchen painting, say on fretwork. Painting a kitchen you regularly come across fretwork, spindles on plate racks, or need to get inside wine racks, or cupboards and smaller spaces. Brushes on sticks and foam wrapped around a stick, you can get anywhere, but spray does have its speed advantages, if only to get the paint on more efficiently into awkward spots so you can finish off manually. Airbrushes sound about right, but they don;t have enough clout to push water based paints through.
This little beauty however lies between an airbrush and a full blown litre pot HVLP for small jobs.
An HVLP gun, but on a mini scale. Alistair Flint specified this Satajet mini HVLP for me, and it is pretty and useful - a “lady stage set painter’s gun”. So you get control, and a smallish reservoir, making it ideal for the smaller jobs, and it is quick to clean and colour change. Or use it as a conventional HVLP.
You need a small 2HP compressor and there are special unions for it, Alistair has it all off pat with what is needed. Not cheap either, but Sata are a top end gun.
I particularly like how you can decant off a small amount of shellac primer and spray apply it to knots or small areas.
Obviously you have the initial cost of the kit, but for touch ups and spot priming, it is a much more efficient and better quality way than using shellac with a brush, and gives you more control than spray cans.
Here is a fuller article with further info