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Chamber Width

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ISO Class

Terra Part #PriceShips in
FloorStatic Dissipative PVC422.12522.12511.625IsoDry® HumiccatorISO 6 3950-86 81101 $14,24525-31 Days2
FloorStatic Dissipative PVC822.12522.12511.625IsoDry® HumiccatorISO 6 3950-91 81106 $18,54325-31 Days3
FloorStatic Dissipative PVC522.12516.12511.625IsoDry® HumiccatorISO 6 3950-87 81102 $15,08025-31 Days4
FloorStatic Dissipative PVC522.12522.12511.625IsoDry® HumiccatorISO 6 3950-88 81103 $15,66325-31 Days5
FloorStatic Dissipative PVC622.12522.12511.625IsoDry® HumiccatorISO 6 3950-90 81105 $16,42125-31 Days6
FloorStatic Dissipative PVC1022.12516.12511.625IsoDry® HumiccatorISO 6 3950-95 81111 $19,76325-31 Days7
FloorStatic Dissipative PVC1022.12522.12511.625IsoDry® HumiccatorISO 6 3950-96 81112 $20,61025-31 Days8
FloorAcrylic422.12522.12511.625IsoDry® HumiccatorISO 6 3950-85 81100 $12,84925-31 Days9
FloorAcrylic822.12522.12511.625IsoDry® HumiccatorISO 6 3950-92 81108 $16,15425-31 Days10
FloorAcrylic522.12522.12511.625IsoDry® HumiccatorISO 6 3950-89 81104 $13,93725-31 Days11
FloorAcrylic1022.12516.12511.625IsoDry® HumiccatorISO 6 3950-93 81109 $16,98425-31 Days12
FloorAcrylic1022.12522.12511.625IsoDry® HumiccatorISO 6 3950-94 81110 $17,63825-31 Days13
BenchtopStatic Dissipative PVC322.12516.12511.625IsoDry® HumiccatorISO 6 3950-82 81097 $12,80225-31 Days14
BenchtopStatic Dissipative PVC322.12522.12511.625IsoDry® HumiccatorISO 6 3950-83 81098 $13,17325-31 Days15
BenchtopAcrylic322.12516.12511.625IsoDry® HumiccatorISO 6 3950-84 81099 $11,73825-31 Days16
Number of Chambers
Chamber Width
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Chamber Height
ISO Class
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Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
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Product Details
  • Available ISO Ratings: ISO 6, ISO 7, ISO 8
  • Humiccator provides a humidity-regulating, economical, contamination-free way to store sensitive materials
  • Humiccator system combines Humex and Dual Purge modules to allow humidification with nitrogen gas purge
  • Dual Purge system conserves nitrogen gas and maintains constant positive pressure to block contamination inflow
  • Humex operates in tandem with Dual Purge to achieve precise humidification and %RH control
  • How Humex Works:
  • The Humex™ 2 Humidifier provides inline humidification of nitrogen or other process gas being fed into the desiccator cabinet.
  • During operation, a 20W resistance heater inside the Humex 2 vaporizes incoming water fed into a stainless steel chamber. Process gas, which enters the Humex 2 through separate 0.25"-diameter flexible tubing, is humidified with steam as it passes through this chamber on its way to the cabinet.
  • The Humex 2 humidity sensor, installed inside the cabinet, monitors the relative humidity (RH) level. As soon as the %RH falls below a user-selected threshold, a relay inside the Humex activates the heater and a solenoid that turns on the water flow. When the %RH set-point is attained, the Humex turns off heater and water flow.
  • Operation with the Dual Purge:
  • For optimal efficiency—and to conserve nitrogen— the Humex operates with Terra’s Dual Purge Variable Purge Controller.
  • In this configuration, the Humex issues a signal to the Dual Purge via a 4-connector low-voltage cable to initiate high flow (bypassing the Dual Purge flowmeter) whenever the humidity falls below the set-point. This high flow of process gas quickly humidifies the enclosure.
  • When the set-point is attained, the Humex deactivates the high flow (as well as the Humex humidification system) to conserve on nitrogen. In this low-flow purge, the flow rate is restricted by the Dual Purge flowmeter.

IsoDry® Humiccator Cabinets

  • IsoDry® Desiccator Cabinet by Terra Universal
  • IsoDry® Desiccator Cabinet Airflow Visualization with Dry Ice
Features & Benefits

Features and Benefits

Terra's Stocking Programs

Here at Terra Universal, we’ve made it our mission to offer the best possible lead times in the industry.  In addition to aggressive stocking programs and streamlined fulfillment, Terra Universal also offers several services that ensure you receive your products as quickly as possible.

Terra FasTrak Guaranteed Delivery Services

FasTrak 24/7 guarantees to meet the shipping date YOU specify, regardless of quoted lead times. 

Terra Universal can provide FasTrak 24/7 service for both in-stock products and custom orders.

Examples of FasTrak 24/7 services include:

  • Assigning a dedicated senior expediter
  • Assigning a dedicated production team and up to three shifts per day
  • Eliminating internal purchase approvals to speed the receipt of parts and materials

Terra FasTrak service fees are only meant to cover the cost of additional Terra services, they are not designed to generate profit. If Terra fails to ship on or before the specified date, Terra will refund up to 100% of the FasTrak charges at the client's request. This guarantee does NOT cover direct, special, consequential, or other damages. It is strictly limited to 100% of the amount paid for the FasTrak service.

The FasTrak 24/7 refund policy does not apply when a specified ship date is missed due to factors outside Terra's control, such as vendor performance or shipping company delays. The FasTrak 24/7 guarantee DOES apply in instances where the shipping date is missed due to Terra's own negligence. 

Terra Quick Ship Plus Service

Terra's QuickShip Program includes thousands of in-stock, ready-to-ship, ready-for-delivery products.

Examples of Quick Ship Plus-eligible products include:

Terra's Quick Ship Plus service provides the necessary resources to guarantee the required delivery date.

The Quick Ship Plus service is available for orders of in-stock, turnkey products that do not require any additional assembly before shipment. This service guarantees that the order will be delivered on or before the date indicated, or the charges for the Quick Ship Plus service will be refunded in full upon the client's approved request.

This guarantee does not cover any direct, special, consequential, or other damages, and is strictly limited to 100% of the amount paid for the Quick Ship Plus service. In alignment with FasTrak programs, In the case that shipment delays arise due to factors that are within Terra's control, Terra will refund up to 100% of the Quick Ship Plus fees. This guarantee does NOT cover direct, special, consequential or other damages and is strictly limited to 100% of the amount paid for Quick Ship Plus service.

Terra Quick Build Program

Terra's QuickBuild Program includes dozens of products with stocked components ready for quick assembly and shipment in 5 days.

Examples of QuickBuild-eligible products include:

Quick Build services are available for Terra products assembled with in-stock, on-hand components. Therefore, Terra can provide these items assembled and ready for shipment within 4 - 6 business days.

Need Help With Product Configuration?

Shop Terra Universal Online for immediate pricing or configure your components and accessories for quoting. For help with configuration, large purchases, and application expertise, contact your Terra sales specialist.

Terra Sales and Customer Service

Mon - Fri, 09:00 AM - 08:00 PM PST

Tel: +1 (714) 578-6100

Email: [email protected]

Smart Performance for Big Savings

IsoDry's forced dilution system drastically improves moisture removal to quickly and efficiently attain low RH set-points. At 10% RH setpoint, IsoDry cuts recovery time and Nitrogen consumption by 80% compared with an unassisted system.

Stainless Steel Racks for Adjustable Shelf Storage Desiccators

Unlike common chrome-plated hardware, durable electropolished stainless steel racks for adjustable shelf storage desiccators help maintain a contamination-free storage environment. They resist corrosion and chipping/scratching from the sliding removable shelves.

Automatic Relief/Bleed Valve

Terra's Automatic Relief/Bleed (RB) Valve opens up at 0.01 PSI, relieving overpressure that could damage desiccators; also works as a check valve to prevent influx of room air.

IsoDry Gas Dilution Module

IsoDry Gas Dilution Module enhances the relative humidity uniformity throughout the desiccator cabinet.

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.

Reinforced Doors with Non-adhesive Gaskets

Stainless steel door frames extend desiccator life; one-piece fused gaskets are non-outgassing, will not creep or sag

Gas Dilution System Ensures Uniform Humidity

IsoDry Gas Dilution Module enhances relative humidity uniformity throughout the desiccator cabinet and speeds up moisture removal after doors are closed.

Durable Embedded Static-Dissipative Layers

Terra's SDPVC features bonded dissipative layers that resist abrasion. SDPVC desiccators retain their surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years), protecting your materials against ESD damage. Further, the control of static charges eliminates particle attractions, helping maintain clean surfaces.

Doors - The First Failure Point of a Desiccator Cabinet

Terra’s stainless steel door frames eliminate the need for internal reinforcements, which create particle surfaces and compromise cleaning. Unlike other doors with glue-on anti-bow pieces, Terra’s doors use no adhesives. This eliminates particle traps, sources of outgassing—and extends the strength and service life of the desiccator.

Highest Standards For Desiccators and Electronic Components

Terra’s desiccator cabinets and RH control systems 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

Complete Project Transparency

Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling

ISO 7 Smart® Desiccator Cabinet on Automatic Height Adjustable Workstation

Automatic height adjusting workstations allow users to quickly alternate between comfortable sitting and standing positions while performing different tasks with heavy equipment on the workspace, such as this Smart® Desiccator Cabinet connected to a Nitrogen Generator.

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements

Products Compliant With Your ISO Rating

Provide Terra with your desired ISO rating. We will tailor the product to meet your rating and certify it with the serial numbers appended to your invoice, to be included in your compliance package.
Available Accessories
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Laboratory Nitrogen Generator

    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.
  • Available Stainless Steel Shelves and Trays

    Adjustable, non-contaminating shelves and trays slide on stainless steel racks, allowing easy parts access (one perforated shelf included)
  • Universal Adjustable Base Stands for Desiccator Cabinets and Cleanroom Equipment

    Stainless steel or powder-coated steel base stands easily adjust to fit cabinets, desiccators and cleanroom equipment of any size or shape. Stands raises equipment to ergonomic height to ease disinfection and sample monitoring. BioSafe design suitable for any cleanroom or lab environment.
  • Humidity and Temperature Data Logger

    Records storage conditions inside a Desiccator chamber-adjustable logging interval (hours to months), USB port for easy data download in several formats.
  • Dual Purge™ and NitroWatch™ Work Together to Fully Automate RH Control

    Terra's Dual Purge™ and NitroWatch™ operate in tandem to precisely and automatically control the flow of nitrogen and maintain a preset humidity level (from ambient to 0% ± 1.5% RH), no matter how operating conditions may change.
  • Data Logging with 113,000 Readings at User Defined Intervals

    Terra's Smart® IsoDry® Nitro-Watch™ logs RH, temp, door open/close, purge on/off, and sensor removal/attachment. The max data file size is roughly 4 MB or 113,000 readings. This is approximately 32 hours of data when logging at 1 second intervals, 2 weeks at 10 second intervals, 6 weeks at 30 second intervals, or 12 weeks at 1 minute intervals. When the system reaches the 4MB limit, data begins to wrap, overwriting oldest data with new.
  • Plug & Play Data Logging

    Plug in a USB flash drive to your Smart® IsoDry® Nitro-Watch™ to transfer data in .CSV format. No software required.
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Desiccator Cabinet 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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