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Terra Part #PriceShips in
120 V304 Stainless SteelStandard Floor36"36"48" 2634-84A 75265 $12,09014-16 Days2
120 V304 Stainless SteelStandard Wall18"18"18" 2634-80A 75261 $9,5591-3 Days3
In stock
120 V304 Stainless SteelStandard Wall18"18"24" 2634-81A 78494 $9,16114-16 Days4
120 V304 Stainless SteelStandard Wall24"24"24" 2634-82A 75263 $9,8841-3 Days5
In stock
240 V304 Stainless SteelStandard Wall18"18"18" 2634-80A-220 75262 $8,69014-16 Days6
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Request demo from your product specialist or add note to your order or quote request.

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Custom-configured product: Terra will quote.
Custom-configured product: Terra will quote.
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Product Details

  • Recirculating HEPA-filtration version adds another layer of protection against contamination for materials being transferred
  • HEPA filter removes contaminating particles of 0.3 um or larger at 99.99% efficiency
  • Air return slots along bottom interior of the chamber circulate air back through the HEPA filter
  • Blower provides continuous operation when switched on
  • Speed control knob allows adjustment of the blower RPM, increasing the airflow and pressure within the chamber
  • Brushless DC fan motor is clean, quiet and energy-efficient
  • Fool-proof automatic interlock mechanism prevents cross-contamination, is reliable and maintenance-free
  • Choose between wall-mount and floor-mount models to fit your workflow
  • Upgrade to Smart® models for electronic interlock or motion sensor activation

Marks & Listings: UL, ULC

HEPA Filtered Cleanroom Pass-Throughs

  • CleanMount® CleanSeam™ Pass-Throughs CleanMount® CleanSeam™ Pass-Throughs
  • Cleanroom Pass-Through Chamber Video Overview Cleanroom Pass-Through Features and Selection Guide
  • CleanSeam™ Cleanroom Pass-Through Chamber CleanSeam™ Pass-Through Chambers
  • ValuLine™ Pass-Through Chambers ValuLine™ Pass-Through Chambers
  • Passthrough Chambers with BioSafe EZ-Out Rack Passthrough Chambers with BioSafe EZ-Out Rack
  • Fire-Rated Passthrough Door Window with Model Fire-Rated Passthrough Chamber with Window
  • CleanMount BioSafe® Pass-Through Chambers CleanMount BioSafe® Pass-Through Chambers
  • Specimen Pass-Through Chamber Specimen Pass-Through Chamber
Cleanroom Pass-Through Chamber Video Overview

Features & Benefits

Features and Benefits

Passthrough with Recirculating HEPA Filtration

Passthrough with Recirculating HEPA Filtration

Wall-mounted HEPA-filtered pass-through in 304 stainless steel
  • Recirculating HEPA-filtration adds another layer of protection against contamination for materials being transferred
  • HEPA filter removes contaminating particles of 0.3 um or larger at 99.99% efficiency
  • Air return slots along bottom interior of the chamber circulate air back through the HEPA filter
  • Speed control knob allows adjustment of the blower RPM, increasing the airflow and pressure within the chamber
  • Adjustable vent on door allows for recirculation or single-pass airflow
  • Brushless DC fan motor is clean, quiet and energy-efficient
  • Fool-proof automatic interlock mechanism prevents cross-contamination, is reliable and maintenance-free
  • Choose between wall-mount and floor-mount models to fit your workflow
Positive Pressure Isolation vs. Biohazard Containment
Diagram of recirculating HEPA-filtered airflow in pass-through chamber

The Recirculating HEPA-Filtration version of the General-Use Pass-through adds another layer of protection against contamination for materials being transferred. A blower/filter module emits a continuous, laminar flow of HEPA-filtered air from the ceiling that prevents airborne contamination from reaching senstive materials.

When run continuously, this micro-filtration system sweeps away any particles that may enter the transfer chamber when the doors are opened and maintains an extremely clean pass-through environment. The blower also slightly pressurizes the chamber, similar to the ISO-classified positive pressure utilized in a cleanroom. Because the pressurization is minimal, the pressure gauge on the unit measures the backpressure at the filter, which can be used to monitor its efficiency and remaining filter life.

The status indicator lights confirm that the pass-through is operational. The installed Minihelic gauge measures backpressure at the HEPA filter in order to determine when a replacement filter is needed.

Ramp for Floor-Mounted Passthrough Chambers

Removable ramps help smoothly transfer carts with sensitive materials into and out of floor-mounted passthrough chambers.

Pass-Through Chamber Interlock

Terra’s automatic mechanical interlock prevents cross-contamination by allowing one door to be open at a time. Encased in stainless steel, the mechanism is rated for millions of operations, more than enough to last the lifetime of the pass-through.

High Caliber Hardware

Seemingly small details like latches, ports, glides and hinges are often overlooked or ignored by other manufacturers, and later become the point of costly recurring maintenance or equipment failure. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware. Individual components are carefully designed and rigorously tested to guarantee the highest quality, durability, and craftsmanship.

Stainless Steel Reinforced Doors and Handles

Doors on professional-grade pass-through chambers are reinforced with stainless steel frames, which lend rigidity, improve the seal, and extend the service life of the doors.

Recirculating HEPA filtration

Air return slots along bottom interior of the chamber circulate air back through the built-in fan and HEPA filter.

Recirculating Passhtrough Speed control knob

Speed control knob allows adjustment of the blower RPM, increasing the airflow and pressure within the chamber.

Replaceable HEPA filter

Interior chamber provides quick access for HEPA filter maintenance/replacement.

Air Return Slots for Recirculation

Air return perforations along bottom interior of the chamber circulate air back through the HEPA filter.

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.
  • 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.
  • CleanTop™
    The CleanTop™ is designed for installations that require the chamber to be centered in the wall. The 30° sloping top on the cleanroom-side minimizes particle accumulation and accommodates laminar downward airflow.

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Manuals & Resources

Manuals & Resources

Pass-Through FAQs

Blog Post

Cleanroom Passthrough Features Comparison

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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