A pass box, which is also called a transfer hatch or pass thru box, works as a cleanroom facility, between areas with different levels of cleanliness from one side to other side through controlled environment in order to avoid airborne cross contamination.
It lessens operator traffic inside controlled facilities, decreasing the risk for cross-contamination of processes and final products.
Pass box is designed in different types; static(passive) and dynamic(active), it is the user specific requirement which decides the right design configuration.
What benefits Flair’s pass box cleanroom can bring?
Flair’s Pass boxes are desinged for transporting items or components in and out of the cleanrooms. Apart from providing full protection, the pass boxes also facilitate with the transportation of the products.
Easy to clean & disinfect
Arched inner corner design according to GMP-Guideline
Easy to clean and to disinfect
Easy to install &operate
Complete unit to install on site;
can be installed with stand,floor-mounted and between cleanroom partition walls.
Advanced air tightness
Mechanical or electronic interlocking system
Durable &Flexible
Cabinet Fabricated in superior SS 304/316
Sizes and functions are customized according to requirement.
Flair Pass box’s main accessories
Excellent quality
Professional design & suprior material
Indicators&Timer
Power (Red)& work (Green)indicator,The entry side with Timer
Air nozzle&diffuser inside
Dynamic pass box inside with SUS air nozzles,Laminar flow is diffuser plate.
UV-C lamp
Optional UV-C lamp can be built-in
SUS door hinges&handle
Full stainless steel 304 (optional: SS 316L interior) meet the GMP factory requirements.
Strictly inspection and test
Based on the ISO 14644–14 guidance, equipments are designed for cleanrooms
Flair is Your Reliable Cleanroom equipment manufacturer
We have more than 18 years of experience in manufacturing high-quality cleanroom equipment, and over 30 engineers are specialized in this field, winning a good reputation in the market.
Want to customize pass box for cleanroom/workspace,contact us you can get free drawing and sample.
It is popular with other names such as cleanroom pass through, clean transfer window and transfer hatch; in addition, it is widely used in microbiology laboratories in food, pharmaceutical and chemical industries.
FAQs
Find answers to frequently asked questions about our products. See the most common topics and more. Any other questions just feel free to contact us.
1. How to install pass box?
2. How to choose pass box?
Pass boxes are the perfect tool for transporting items in and out of cleanrooms. These boxes are widely used in laboratories, hospitals, pharmaceutical and light-industrial environments. They not only offer full protection but also facilitate transportation of products.
Cleanroom pass boxes come with different features and sizes, hence installing the right product is important. How to choose the right cleanroom pass box for your facility.,there are som sugggestions :
Pass boxes are available in 3 different types,the main difference is the ventilation and contamination filtering.
Static/Passive pass box:used to transfer the material to two clean room which have equally classified,and has no air supply or extract. It is also known as passive pass box and equipped with UV light.
Dynamic/Active pass box:fitted between classified and non-classified areas. Material is passed through vertically HEPA filtered air.completely integrated within the partition wall. Designed to transfer the materials in a controlled environment making sure that there is not much movement.
Laminar flow (Biological )pass box
3. Dynamic pass box working principle
A dynamic pass box is used to transfer the material between non-classified areas to classified areas or between two classified areas with a class difference.Transfering material from Class D ( ISO 8) to Class C ( ISO 7) would require a Dynamic Pass-Through Hatch.
Air Circulation System and Velocity
A Motor-blower with suspension arrangement for reduced noise levels (Less than67 dB) is provided for Dynamic Pass Boxes. A Dynamic Pass box also acts as an ISO 5 ( Class A ) Airlock which could be any of the 3 airlock types Bubble, Cascade, and Sink. In a dynamic pass box laminar air passed through HEPA EU14 filters (99.997% efficiency down to 0.3 Micron) at an average velocity of 0.45 m/s is passed over the material. Dynamic Pass boxes have a perforation at the bottom to enable air circulation. No such arrangements are necessary for a Static Pass box.
Timers and Transfer protocol
Dynamic Passboxes have a clean down timer with operation Hold Indicator interlock to put on fluorescent lights only after clean down time is over. The Transfer mechanism of different products could depend on the usage, however, it is a given that the material being transferred has to spend a minimum amount of residence time ( Eg. 2 -5 mins) inside the chambers so that the contamination causes are overcome and higher air classification is achieved inside the Box. There is a certain amount of time after which UV lights must be turned on for effective disinfection of the microbes and then turned off before the cabinets are to be opened from the other side.
The Validation protocols and procedures for Dynamic Pass Boxes are hence more stringent and elaborate with HEPA Integrity Tests, Air Velocity Test and recovery tests as per ISO -14644-3 as compared to the validation of Static or Passive Pass boxes.
