- The air chamber works by circulating up to 50,000 litres of clean air per hour throughout the storage cell whilst electrostatic filters trap even the smallest airborne particles. Excess moisture and stale air leave via zips and vents. Replenished by fresh, filtered air from the fans, the environment will always remain fresh, as well as condensation-free (because rapid changes in temperature are prevented). With a virtually moisture-free atmosphere, rust and mould simply cannot develop. This helps prevent materials like wood, leather and rubber from losing their natural qualities.