The Biobase ASPB series (available in three sizes) integrates air shower technology into a cleanroom transfer hatch, providing an “active” solution for moving materials in and out of controlled environments. Unlike static pass boxes, these hatches feature a built-in air shower that automatically activates when items are placed inside, minimizing the amount of particulate contaminants entering the cleanroom. Constructed from high-quality SS 304 stainless steel, the ASPB series includes HEPA filtration and a secure electric interlock system to maintain the sterile barrier. These hatches are widely used in pharmaceutical, hospital, and high-tech industrial settings where even small items must be decontaminated before transfer. By facilitating the safe and sterile movement of products, the Biobase ASPB series ensures that the strict purification standards of the cleanroom are never compromised during material handling.