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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