In order to solve the problem of contamination when any materials are required to be transferred into facilities such as clean rooms, Airtech comes out with a solution of using a pass box. Clean rooms are usually designed such that the need for personnel to enter and exit is minimized to reduce contamination. A pass box reduces the need for personnel to transfer items through the door.

The pass box is usually installed on the walls of the clean room to act as a temporary storage area to transfer any materials into or out of the clean room. The pass box has a mechanismto prevent operators from opening both of the doors at the same time. This helps to prevent the integrity of the clean room from being compromised. The pass box has a phone for operators on opposite sides to speak to each other when the items are to be transferred in or out of the clean room.

The doors on the pass box are transparent which allow personnel to have a clear view of the internal enclosure. The clean auto pass box is built with the concept of what a normal pass box can do and provide automation of items to be transported from one room to another. The clean auto pass box is a system that comprises of two automatic sliding doors at each end, high-efficiency particulate arrestance (HEPA) filter, fan and a roller conveyor.

It is particularly useful in scenarios where high volume and frequency are required. This automation improves efficiency in terms of time and manpower. Fan filter unit (FFU) is an air clean device equipped with Custom PTC Fan Heater  a fan that is typically mounted on the modular T-Grid ceilings. The fan filter unit ensures that clean air is maintained in clean environments such as clean rooms.

Airtech provides fan filter units that are twice as efficient as its competitors equivalent units. The fan filter unit is a box filter with a filtration grade of either high-efficiency particulate arrestance (HEPA) or ultra-low particulate air (ULPA). The HEPA version is able to achieve anefficiency of 99.995% at 0.3 microns while the ULPA version is able to achieve an efficiency of 99.9995% at less than 0.2 microns.

The casing is made of aluminum-zinc alloy-coated steel sheet. Airtech uses special fan blades in the fan filter unit that are coated with fiber. These blades are able to achieve high efficiency and at the same time achieve a low noise level of only 50 dBA. Airtech’s fan filter units are able to meet clean room requirements of class 100 or better environments where the maximum number of particles of size 0.5 microns per cubic foot of air cannot exceed 100.

The class 100 standard is equivalent to ISO 5. Compared with a normal room, the air is around class 1,000,000 or ISO 9.The fan filter units are usually mounted on T-grid ceilings. In the event that the ceiling is not T-grid, the fan filter units can still be mounted with corner mounting eyebolts.