Hygiene Systems Dynamic Pass Box

Dynamic Pass Box is designed to allow material transfer through controlled environment without much personnel movement to minimize man /material movement & avoid cross contamination between different classified areas. This is essentially installed to minimize movement of personnel for transfer of material into and from the clean room. It aids to achieve desired classification, maintain integrity of products, process & controls ingress of particulate contaminants into clean room & between different classified areas. Our range of Dynamic pass boxes is available in various specifications as per the client’s requirements.Dynamic Pass Box is with a variety of standard dimensions also our pass boxes can be custom engineered to any size. Dynamic pass boxes available in powder coated Mild Steel, SS 304 / 316 / 316L or a combination of both.

Optional Accessories

  • U.V. Light with Hour Meter
  • Electro-Magnetic / Mechanical Interlocking
  • SS 304 removable grills on side walls for return air
  • Floor mounted construction with three side wall structure & Door Drop Seal
  • Audio Visual Alarm indicating condition of HEPA Filters
  • Clean down timer with operation hold indicator
  • VFD based control systems
  • Photohelic guage / Digital pressure gauge to monitor of pressure drop across filter
  • Flame Proof Fitting

Technical Specifications

  • HEPA Filter: Imported Minipleat HEPA filter with hot melt technology, which conforms to EU-14 Grade at supply position with an efficiency rating better than 99.999% for 0.3μ
  • Pre-filter: Pre-filters are made from Non-woven synthetic with HDPE mesh; conformsto EU-06 Grade, with an efficiency rating better than 95% down to 5μ.
  • Motor blower assembly : Motor blower designed of statically and dynamically balanced for supply of sufficient capacity and static pressure to take care of airflow requirement for entire life of HEPA
  • Differential pressure gauge : Dwyer Make Magnehelic Gauge (0 -25 mm: 1 Nos.) to monitor pressure drop across HEPA
  • Door: SS 304 double walled door construction with flush glass view panels with SS handles and SS hinges
  • Interlocking: Electro-Magnetic Interlocking type door arrangement to ensure that only one side door can be opened at any given time
  • Door Indication: Indicators on either side for door open condition
  • Door release (Push type): Door Release Switch on either side
  • SS Covering: Internal covings for easy cleaning
  • ON/OFF Switches: SS ON/OFF Switches for motor & lights
  • Switch socke: 6/15 Amp single-phase switch socket use for external equipment
  • DOP Port: DOP test port at upstream of HEPA filter to personnel for carrying out the HEPA filter integrity test.
  • Vibration Level: Minimum
  • Electrical Supply: 230V AC 1- Ø 50HZ / 415V AC 3-Ø 50HZ
  • Noise Level: Less than 67 dB on scale ‘A’ when ambient is greater than 55 dB on scale ‘A’

Our Products



  • Model : DPB-18-18-18
  • Working Area(mm) : 450 X 450 X 450
  • Airflow Velocity(Down Flow) : 0.45±0.05mps/ 90(fpm)
  • Air Cleaniness : ISO Class 5 (ISO 14644-1:1999 (E)) / Class 100 (U.S. FED STD 209 E)
  • Air Flow : Vertical Recirculatory


  • Model : DPB-24-24-24
  • Working Area(mm) : 610 X 610 X 610
  • Airflow Velocity(Down Flow) : 0.45±0.05mps/ 90(fpm)
  • Air Cleaniness : ISO Class 5 (ISO 14644-1:1999 (E)) / Class 100 (U.S. FED STD 209 E)
  • Air Flow : Vertical Recirculatory

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