The Mekko AD-606 is the largest humidity control solution in the Mekko range, boasting a massive 1300-litre capacity designed for high-volume SMT production facilities. This six-door, floor-standing chamber is engineered to protect thousands of valuable components and large substrates from the damaging effects of moisture. Utilizing the advanced MTX-Flow “Active Desiccant” dehumidifier, the AD-606 maintains a guaranteed internal humidity level of less than 5% RH, with a rapid recovery time that ensures the internal environment stabilized within two minutes of closing the doors. The unit can hold up to 60 removable sliding shelves, offering unparalleled organization and storage density. Like all Mekko cabinets, it operates without the need for moisture barrier bags or nitrogen, significantly reducing operational costs and material waste. Its precision $\pm1\%$ RH display and closed-loop control system provide the absolute environmental stability required for mission-critical electronics manufacturing, ensuring all stored parts remain in “factory-dry” condition regardless of external ambient humidity.