Airbrush foundation is a thin, fast-drying liquid made to atomize through a compressor gun in fine layers, though many shoppers also apply it with a dense brush or damp sponge.
- Check the stated viscosity and whether the listing says the formula suits your gun's PSI range and nozzle size.
- Match shade family and undertone in daylight, because sprayed layers read lighter than the same drops patted on.
- Read the finish and coverage wording, from sheer satin to full matte, plus any listed wear length.
Compare bottle volume with how often you plan to spray, since one face usually takes only a few drops.