VHP Aseptic Pass Box: An invisible shield to protect aseptic production

In the sophisticated world of aseptic production, VHP aseptic Pass Boxes play a vital role, with state-of-the-art vaporized hydrogen peroxide (VHP) generators at the heart of their driving force. This revolutionary component takes advantage of hydrogen peroxide's superior sporicidal ability at ambient gaseous conditions, far beyond its liquid form. By releasing free hydroxide groups, the VHP generator precisely and efficiently destroys the cellular structure of microorganisms, including lipids, proteins, and DNA, to achieve a comprehensive and in-depth sterilization effect. Tailor-made for confined spaces such as isolation chambers, isolators and transfer chambers, VHP generators demonstrate exceptional adaptability and performance.

The VHP aseptic Pass Box is the culmination of this technology. It integrates a VHP generator to create an environment filled with hydrogen peroxide gas inside the transfer window and is designed for biological decontamination of the outer surface of the material. The aim is to ensure that the material does not carry any risk of contamination when crossing a non-clean area or a low-level clean area into the critical Class A and B clean areas. This solution is widely used in aseptic production processes and is essential for the transfer of clean and dry goods, such as the outer packaging of packaging materials in Class A and B clean areas, the outer packaging of precision instruments and raw materials, etc.

Selection

As the core equipment of biological decontamination of material surface, the mission of VHP aseptic Pass Box is to strictly control the contamination risk when materials are transferred from low cleanliness areas to high cleanliness areas. One of the highlights of the system is the integration of advanced External Hydrogen Peroxide Generator (VHPS) technology, which enables an efficient and environmentally friendly disinfection and decontamination process under mild ambient conditions, i.e. at low temperatures and atmospheric pressures.

The excellence of VHP aseptic  Pass Box is not only limited to its excellent purification efficiency, but also reflected in its exquisite process structure. The equipment adopts imported high-quality inflatable sealing strips, which ensure unparalleled sealing effect with their high-density characteristics and effectively block the incursion of external contaminants. In addition, the air duct between the door frame and the door leaf is concealed and recessed, which not only improves the overall aesthetics, but also greatly simplifies the cleaning and maintenance process.

In order to prevent potential risks caused by mishandling, the VHP Aseptic Pass Box has been specially equipped with an interlock safety function, which is designed to avoid safety or contamination problems caused by human negligence in the first place. At the same time, its innovative ventilation and sewage unit design cleverly avoids the pollution of the cleanroom HVAC system caused by the exhaust gas generated during the disinfection process, ensuring the continuous cleanliness of the overall environment.

Transmission process: accurate and efficient, seamless docking

The delivery process of the VHP aseptic Pass Box is designed to be both scientific and efficient. First, the material to be transferred is placed on the side of the Pass Box, which is usually connected to the area with a lower cleanliness level. When the material is ready, the sealed door of the transfer window is closed to ensure complete isolation from the inside and outside environment.

Next, the VHP sterilization process is initiated. With the built-in vaporized hydrogen peroxide generator, the high concentration of hydrogen peroxide gas is quickly released inside the Pass Box and evenly distributed. With its strong oxidizing properties, hydrogen peroxide gas can effectively destroy the cellular structure of microorganisms, including bacteria, viruses, fungi and their spores, so as to achieve the effect of complete sterilization.

After the sterilization phase is completed, the hydrogen peroxide gas in thePass Box needs to be gradually removed through the ventilation and residue removal system until the concentration drops to a safe level (typically less than 1 ppm). At this point, a sealed door on the other side (connected to the higher cleanliness area) can be opened, allowing the material to enter the target area safely and aseptically.

It relies on a single-phase AC 220V/50HZ power supply to operate stably, and the air supply and exhaust systems are equipped with high-efficiency H14 HEPA filters to ensure the ultimate purity of air quality. The decontamination cycle is efficient and fast, the whole process takes no more than 120 minutes, and the inflation and deflation processes are controlled in an astonishing 5 seconds. What's more, the equipment can withstand more than 10,000 repetitive operations, fully proving its excellent stability and durability, providing a solid guarantee for all kinds of production environments with high cleanliness requirements.

conclusion

As a key equipment in aseptic production, VHP aseptic Pass Box provides a reliable guarantee for the transfer of materials between clean areas with its technical advantages of high efficiency, environmental protection, safety and intelligence. With the continuous progress of science and technology and the increasing requirements of aseptic production, VHP aseptic Pass Box  will show its unique value in more fields and become an invisible shield to protect the safety of aseptic production.