The pass thru box is a critical part of the product transfers which occur in every cleanroom. Although simple in design, the use
of a pass box is essential to the maintenance of the high level of cleanliness within the cleanroom. The pass box significantly limits
the amount of outside air exposed to the clean zone. With the use of either a mechanical or electrical interlock system, the cleanroom
is protected from the cross-contamination which would occur if both doors were to open simultaneously. Atmos-Tech constructs
Pass-Thrus for small or large parts, wheeled carts, and even personnel.

The cleanroom pass box is made of stainless steel and is smooth and clean. The two doors are interlocked to effectively prevent cross-contamination. Electronic or mechanical interlocking devices are provided and ultraviolet germicidal lamps are provided.