Created to deliver prompt air changes and swift clean-up/recovery periods, reducing the waiting period when transferring products between different classification rooms within cleanroom facilities.

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  • Flush button sets
  • PBSC's Solid Stainless-Steel Hinge Assemblies
  • PBSC's unique concealed Interlock System, with the option for doors to fail open or locked
  • Easy Clean Surfaces
  • Wall or Floor Mounted Options
  • Terminal HEPA filter, with change from inside the hatch
  • Toughened Glass Door Leaf’s
  • Custom Sizes
  • No HVAC connection required


High Efficiency Particulate Air

A trustworthy pass through reducing cross contamination....

Developed to function without an interior link to the building's HVAC system, ideal for many different cleanroom facilities.

PBSC's fan Filter Hatch can also be known as a Pass Box, Pass Through, Fan Filter Pass Through, Through Box, Cleanroom Transfer Hatch, Cleanroom Hatch, Pass-Thru, Hospital Box, Pass box, and Lab Box.

Technical Specification

  • Removal of up to 99.9% of the particles in the air stream
  • Adjustable fan speed controller to allow for between 20-300 air changes per hour
  • 10mm toughened to EN 12150-1
  • The system can run with either 120V/60hz or 230/50Hz
  • Please contact PBSC for specific design options.
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  • PBSC reserve the right to introduce changes in performance, configuration and technology, dimension, weights and materials in the course of technical progress. Images may not be accurate
  • Some of the information/images/equipment described or shown may only be available at extra cost. Features & specifications will vary.


  • Internal Support Shelves
  • Recirculating or one pass through air flow
  • Various FFU filter sizes
  • Single or double door leaves up to 6’ W x 7’ H.
  • Steel or phenolic resin doors
  • Floor mounted unit for trolley pass through