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Terra Part #PriceShips in
120316Flush FloorULPA304850 6705-68-316 74440 $44,7481-3 Days2
Only 2 left in stock
120316Flush WallHEPA181818 6705-79-316 75335 $22,0031-3 Days3
In stock
120316Flush WallHEPA181824 6705-80-316 78496 $21,08314-18 Days4
120316Flush WallHEPA182418 6705-69-316 79775 $20,24614-18 Days5
120316Flush WallULPA242624 6705-72-316 74382 $24,6711-3 Days6
Only 3 left in stock
220316Flush FloorULPA304850 6705-68-316-220 74441 $40,68035-40 Days7
220316Flush WallHEPA181824 6705-80-316-220 79774 $21,08314-18 Days8
220316Flush WallHEPA182418 6705-69-316-220 79776 $20,24614-18 Days9
220316Flush WallULPA242624 6705-72-316-220 74383 $22,42910-15 Days10
Mounting Position
Filter Type
Inside Width
Inside Depth
Inside Height
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

Request demo from your product specialist or add note to your order or quote request.

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Usually Ships in:
Free shipping in contiguous USA
Custom-configured product: Terra will quote.
Custom-configured product: Terra will quote.
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Product Details
  • 100% stainless steel filter fan unit emits a continuous flow of HEPA/ULPA-filtered air from the ceiling
  • Double-walled 304 stainless steel construction
  • Exceeds USP <797> and <800> standards for sterile drug compounding
  • Air return slots along the bottom of the chamber circulate air back through the HEPA/ULPA filter
  • Continuously sweeps away particles that enter the transfer chamber
  • Slightly pressurized chamber prevents outside air from leaking in
  • Pressure gauge measures back pressure at the filter to monitor efficiency and remaining filter life
  • Speed control knob lets users adjust the blower RPM, increasing the airflow and pressure within the chamber
  • Flush mounting on the "clean" side reduces horizontal surfaces that collect particles
  • High-Efficiency Particulate Air (HEPA) filter removes contaminating particles of 0.3 um or larger at 99.99% efficiency
  • Ultra-Low Particulate Air (ULPA) Filter: 99.999% efficient at 0.12µm particle diameter
  • Brushless DC fan motor is clean, quiet and energy-efficient
  • Status indicator lights flash when blower is not operating
  • LED light bar indicates when the interlock is engaged
  • Audible chimes alert personnel when a pass-through door is opened
  • Choose between wall-mount and floor-mount models to fit your workflow

Marks & Listings: CE, UL, ULC

HEPA Filtered Cleanroom Pass-Throughs

  • Smart® Pass-Through Chambers by Terra Universal
  • Cleanroom passthrough chamber with 3 interlocking doors for USP 800 hazardous compounding Smart® Pass-Through with “T” Shape 3-Door Design for USP 800 Hazardous Compounding
  • this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination Hands-Free, Automatic Pass-Through Door
  • Pass-Through, Smart; 304 SS, Recirculating HEPA Filtration, 31 Pass-Through, Smart; 304 SS, Recirculating HEPA Filtration, 31"W x 26"D x 45"H
  • Smart Cleanroom Pass-Through with 90 Degree Corner and HEPA Filtration Smart Cleanroom Pass-Through with 90 Degree Corner and HEPA Filtration
  • Woman opening extra-large smart pass-through with ULPA filtration Extra-Large Smart Pass-Through with Recirculating ULPA Filtration
  • Smart Pass-through Chamber with ULPA air shower for chemo compounding cleanroom Smart Pass-through Chamber with ULPA Air Shower for Chemo Compounding Cleanroom
  • Smart Pass-through box with side-mount UV light and recirculating HEPA filtration Smart Pass-Through-Box with Side-Mount UV Light and Recirculating HEPA Filtration
  • Vertically stacked Smart passthrough chambers for stem cell lab Vertically Stacked Smart® Passthrough Chambers with HEPA Filtration on Top for Stem Cell Lab
  • Floor Mounted Recirculating Smart Passthrough Floor-Mounted Smart Pass-Through with Recirculating HEPA Filtration
  • Recirculating HEPA Filtration Pass-Through Chamber Recirculating HEPA Filtration Pass-Through
  • HEPA Filtered Smart Cleanroom Pass Through with Intercom System HEPA Filtered Smart Cleanroom Pass Through with Intercom System
  • Pass through with HEPA FFU for transferring equipment into nuclear medicine labs Smart® Pass-Through with Recirculating HEPA Filter System for Transferring Equipment into Nuclear Medicine Lab
this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination
Features & Benefits

Features and Benefits

CleanMount Basics

CleanMount CleanSeam Pass-Through Chamber

CleanMount™ Design Allows Servicing or Replacement without Cleanroom Shutdown!
The simplicity of this CleanMount clamping system makes removal of the pass-through chamber just as easy as installation. If the wall cut-out framing is properly sealed prior to installation, the pass-through can be quickly removed and replaced without ever having to shut down the cleanroom. Maintain the positive-pressure differential and protect the cleanroom environment by sealing off the "dirty side" with plastic sheeting prior to removal. Loosen the lag bolt so that the pass-through lifts out of the wall without contaminating the room. Once out, the pass-through can be serviced, modified, or even replaced with an upgraded version to accommodate new applications.
A - Inside of flush-mount bracket on opposing side
B - Bolt guide extending from nut welded to opposing bracket
C - Mounting bolt (one, two or three per side, depending on chamber height) - standard sizes accommodate any wall thicknesses
D - Mounting bracket
E - Bracket cover
F - Standard wall (masonry or drywall)
dry wall cut-out for installing cleanroom passthrough chamber Finish cut-out framing to minimize contamination exposure during servicing Terra's quick-mount system installs in under five minutes, regardless of wall thickness and without contamination
Access Clearances
Width = W (nominal) – 1.88”
Depth = D (nominal) – 0.12”
Height = H (nominal) – 1.25”

Lift-Off, Non-Shedding Door Hinges

Non-shedding, barrel-type door hinges allow the doors to lift off for thorough cleaning and decontamination (no tools required). Unlike industry standard continuous designs, these hinges comply with strict ISO levels.

All Stainless Steel FFU with Removable Filter Replacement Screen

The pass through includes an all-stainless steel filter fan unit with a screen for easy HEPA filter replacement. The screen is held in place by double roller catches, which allow the screen to be easily popped out of the ceiling to access the HEPA filter.

Recirculating HEPA Filtration Diagram

By recirculating the interior air, airborne particles are rapidly removed by successive passes through the HEPA filter. Recirculation also minimizes pressure buildup that can cause leakage into an adjacent positive-pressure cleanroom.

Interlock Status Lights

Prevent operator damage! A green light bar indicates the door is available for use, with the electronic interlock disengaged. The bar turns red when the opposing door is open to indicate the electronic interlock is engaged.

Smart® Cleanroom Pass-Through with Full-Glass Doors

Hygienic and damage resistant full tempered glass doors are specifically designed for healthcare, pharmaceutical, and GMP manufacturing applications to help achieve FDA compliance. The outside surface of the tempered glass door is frameless to minimize cracks and crevices where particulates or microbes can colonize.

Wireless Door Alert

Alarm bell rings when its assigned door is open (two bells per chamber); plugs into a standard wall outlet.

CleanMount™ Quick Install System

Clean-Mount™ clamping design allows pass-through installation flush against a cleanroom wall in a few minutes, without drilling into the finished wall; mounting brackets clamp flush against walls of any thickness.

Flush-Mount Design Prevents Dust Accumulation

CleanMount® pass-throughs hug the cleanroom wall, eliminating gaps that collect germs and particle and making them ideal for critical bio/pharmaceutical cleanroom use.

CleanMount® Lipless Chamber Eliminates Clearance Obstructions

Instead of welded seams, the corners of the CleanMount® pass-through interior are coved to eliminate dust and germ traps. The lipless opening presents no clearance obstructions and further simplifies cleaning.

Removable Cart Ramps on Floor-Mount Models

Floor-mount pass-through chambers include dual-side stainless steel cart ramps, sloped on three sides, that are removable for easy cleaning.

Air Return Slots for Recirculating HEPA Filtration

Air return slots along bottom interior of the cleanroom passthrough cabinet circulate air back through the built-in fan and HEPA filter to remove airborne particles inside the chamber.

Highest Standards For Electronic Components

Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.
Available Accessories
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Iris Scanner

    Fully automated iris scanner for secure, hands-free access (includes datalogging and optional secondary keycard reader).
  • Intercom System

    Built-in intercom system lets users easily call and communicate between rooms. No more knocking on windows, shouting, or awkward sign language.
  • Automatic Door

    Hands-free operation of the pass-through door, governed by the electronic interlock; automatically closes based on delay timer.
  • Video Camera

    Interior HD video camera records continuously or upon door-opening; can also be used for remote monitoring the transfer chamber.
  • Infrared Load Sensor

    Infrared beams detect objects placed inside the transfer chamber and can be used to trigger an audible alert. The crossed red lines depict the non-visible trigger lines between the IR transmitters and receivers.
  • Support Brackets for Pass-Through Chambers

    Stainless steel support brackets are recommended for pass-throughs deeper than 24". Brackets fasten to the wall and the body of the chamber rests upon the horizontal bar; no fasteners are used on the pass-through itself.
  • Available UV & LED lights

    Lights are recessed with a transparent lens for easy cleaning; UV-C module neutrailizes microbes using a timed disinfection cycle.
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