An air tank is a pressurized container connected to the compressor that stores compressed air. Instead of the compressor directly feeding the airbrush (which creates pulsing), the tank acts as a buffer, the compressor fills the tank, and the tank delivers smooth, consistent air to the airbrush.
Benefits:
- No pulsing. Smooth airflow = smooth spray.
- Compressor cycles less. The motor only runs to refill the tank, extending its life and reducing noise.
- Brief air reserve. You can spray briefly even if the compressor shuts off momentarily.
Tank size for airbrush compressors is typically 1–3 liters, small by industrial standards but adequate for the low air consumption of airbrushes. Larger tanks hold more reserve and cycle the compressor less frequently.
Strongly recommended: Virtually every experienced airbrush user recommends a compressor with a tank. Tankless compressors work but produce noticeable pulsing that affects spray quality.
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