Dynamic Pass Box

Care Equipments - Clean Room Equipments Manufacturer

Dynamic Pass box is used to transfer the materials from one side to other side through a controlled environment in order to avoid cross contamination of airborne particles. It is fixed between two cleanroom areas having different grade/class of air, though we can also use for the same grade/class of air. It prevents the entrance of contaminants in the sterile area from non sterile area. Door Interlocking is the primary feature of a pass box, when one side door is open the other side door remains closed.

It consists a HEPA Filter which is used to provide 0.3 micron air in the intenal working area (ISO 5 – Class 100) with Grill Protection. Differential Pressure Gauge is mounted to monitor the Diff. Pressure across HEPA Filter. There is also recirculatory system with Pre filter for the longer life of HEPA Filter. It is also known as Active Pass box equipped with UV light. It is popular with other names such as cleanroom pass through box, hatch box, transfer hatch, clean transfer window and transfer hatch; in addition, it is widely used in microbiology laboratories in food, pharmaceutical, laboratories, life science, electronics and chemical industries.

Care Equipment is a Leading Dynamic Pass Box manufacturer in India. We supply to all over India as well as abroad. Our pass boxes deliver low noise and easy to use operation, rugged construction promises long service life. we make standard and customized pass through boxes to any customer provided size. Every box is made to comply international standards and supplied at industry leading price in India.

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Technical Specifications

Parameter Specification
Air Flow Vertical Down Flow (Recirculated)
Air Cleanliness Dust counts exceeds Class 100 requirements as per ISO 14644 & IEST-RP-CC001.3
Air Velocity 90 ± 20 FPM at 150 mm From HEPA Filter Face, (0.45 ± 0.05 m/s)
Material Thickness 1 mm / 1.2 mm
Surface Finish Matte Finish No. 4
Material Grade SS 304 / SS 316 / SS 316L / In Combination
Construction Double Skin Body Construction, Recirculatory Plenum on Both Sides
Internal Coving Pencil Coving in Internal Working Area for Easy Cleaning
HEPA Filter 0.3 Micron, H14 Grade with Efficiency 99.999%, Supply Minipleat HEPA Filter
Pre-Filter 5 Micron, EU5 grade with Efficiency 95% – Washable (For Fresh Air & Recirculation)
Motor Blower Statically & Dynamically Balanced Single/Double Inlet Centrifugal Type Motor Blower
Magnehelic Gauge 0 to 25 MM, To measure differential pressure across HEPA Filter
Speed Variable To adjust the speed of Motor Blower and maintain the required velocity.
Display Two Line Digital Display with ON/OFF Buttons with LED Indication
Controller Electromagnetic Door Interlocking (Allows to open one door at a time)
LED Light Diffused Fluorescent Lighting to provide an intensity of 300 LUX
UV Light 8W-11W
Hour Meter UV Burning Hour Meter (Inbuilt in Controller)
Alarm System Door Open / Close Delay Audio Visual Alarm
System Protection Password Protected System
Door Type SS Sandwich Door with View Panel
View Panel Double Side 4 mm Toughened Glass
Door Handle SS 304
Door Hinges SS 304
DOP/PAO Test Port SS 304 (For HEPA Filter Testing)
Atmospheric Nozzle SS 304
Noise Level Less than 65 DB on scale
Power Supply 230V ± 10V, 50 Hz, Single Phase (Also Available in 3 Phase)
Documentation DQ, IQ and OQ Documents along with all Necessary Test Certificates


Standard Size of Dynamic Pass Box

Model Number Internal Size in MM
(W X D X H)
Internal Size in Feet
(W X D X H)
DPB-450 450 X 450 X 450 mm 1.5 X 1.5 X 1.5 Feet
DPB-600 600 X 600 X 600 mm 2 X 2 X 2 Feet
DPB-750 750 X 750 X 750 mm 2.5 X 2.5 X 2.5 Feet
DPB-900 900 X 900 X 900 mm 3 X 3 X 3 Feet
*We also manufacture dynamic pass box size as per customer’s requirement


Warranty and Service Support

We provide 1 year manufacturing warranty from the date of dispatch, We believe in best of the quality and after-sales service support.


Key Features and Specifications

  • Design according to WHO, GMP Guidelines ISO 14644-3:2018 [IEST-RP-CC001.3] Compliance
  • Electromagnetic Door Interlocking System with Process Lock Timer (Inbuilt)
  • 0.3 Micron HEPA Filter with 99.999% Efficiency down to 0.3 Micron [99.995% @ 0.3 MPPS] with Make AAF (American Air Filter).
  • 5 Micron Pre Filter with 90% Efficiency down to 5 Micron.
  • Centrifugal Forward Curved / Backward Curved Motor blower with speed variable.
  • Digital or Analog differential pressure gauge with range 0 to 25 mm of WC.
  • Advanced airtight Sturdy Built Doubled Skin Body with No Sharp Edges
  • Pencil Coving for Internal Working Area for Easy Cleaning
  • Fluorescent Illumination LED Light and UV Light for Disinfection with UV Hour Meter (Inbuilt)
  • Door Open / Close Delay Alarm (Inbuilt)
  • 30 MM Double Skin Doors with View Panel 5 MM Toughened Glass as View Panel


Optional Features & Accessories

  • Flame Proof Design & Construction
  • Three Way Dynamic Pass Box
  • L Type Construction
  • Support Stand for Pass Box Mounting
  • UV Hour Meter (External)
  • Digital Differential Pressure Gauge with Alarm Hour Meter
  • Extra UV Light and Fluorescent LED Light
  • Spare HEPA Filters, Pre and Fine Filters
  • eFRM / PTFE Media HEPA Filter for Velocity at working height as per latest guidelines.
  • EC Series Backward curved motor blower for Energy efficient solution.


Validation of Dynamic Pass Box

  • Velocity Measurement [90 ± 20 FPM at 150 mm From HEPA Filter Face, (0.45 ± 0.05 m/s)]
  • HEPA Filter Leak Test / Integrity Test
  • Particle Count Test [As per Class 100 / ISO 5]
  • Air Flow Pattern Test [Smoke Study]
  • Recovery Test


Mounting Arrangements

  • Wall Mounting
  • Stand Mounting
  • Floor Mounting



  • Design Qualification
  • Installation Qualification
  • Operational Qualification



  • M.O.C. Certificate
  • Test Certificate for Controller
  • HEPA Filter Test Certificate
  • Motor Blower Test Certificate
  • Pre Filter and Fine Filter Test Certificate
  • Differential Pressure Gauge Calibration Test Certificate
  • Microcontroller with Digital Display Test Certificate


Areas of Application

  • Pharmaceutical Industries
  • Hospitals and Medial
  • Microbiology Laboratories
  • Chemical Research Laboratories
  • Food Processing Industries
  • Electronics Industries


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