Exploring the Different Types of Laboratory Desiccators and Their Uses

In laboratory environments, maintaining a dry and moisture-free environment is crucial for the preservation and storage of moisture-sensitive materials, samples, and equipment. Laboratory desiccators are essential pieces of equipment designed to create and maintain low-humidity conditions. They are commonly used in various scientific, research, and industrial settings where moisture control is critical. Global Lab Supply understands the importance of laboratory desiccators and offers a wide range of high-quality options to meet the specific requirements of scientific and healthcare facilities. In this comprehensive guide, we will explore the different types of laboratory desiccators and their uses, helping you make informed decisions when selecting the right desiccator for your applications.

Vacuum Desiccators

Vacuum desiccators are one of the most commonly used types of desiccators in laboratories. They work by creating a vacuum seal inside the desiccator chamber, which removes moisture and lowers the humidity. Vacuum desiccators are available in various sizes and designs, including:

Standard Vacuum Desiccators: These desiccators consist of a transparent or translucent chamber made of materials such as glass or acrylic. They typically have a ground glass or silicone stopper to create a vacuum seal.

Vacuum Desiccators with Ground Glass Flanges: These desiccators feature a ground glass flange on the lid and base, which allows a secure vacuum seal when the two parts are joined together.

Vacuum Desiccators with Stopcock Valve: These desiccators have a stopcock valve at the base that allows for precise control of the vacuum level and moisture removal.

Uses: Vacuum desiccators are suitable for a wide range of applications, including drying and preserving moisture-sensitive chemicals, storing hygroscopic materials, protecting samples from moisture damage, and conducting experiments that require a low-humidity environment.

Desiccator Cabinets

Desiccator cabinets, also known as dry boxes or dry cabinets, are larger-scale desiccators that provide controlled low-humidity storage for bulk or sensitive items. Desiccator cabinets are typically made of materials such as stainless steel and feature multiple shelves or compartments for storage. They often include a built-in humidity control system that allows for precise humidity regulation.

Nitrogen Purge Desiccator Cabinets: These cabinets incorporate a nitrogen purge system to displace oxygen and moisture from the storage environment. Nitrogen gas is introduced to create an inert atmosphere, preventing oxidation and moisture damage.

Desiccator Cabinets with Humidity Control: These cabinets feature an integrated humidity control system, such as a hygrometer or electronic controller, which allows precise regulation of humidity levels.

Uses: Desiccator cabinets are commonly used for storing moisture-sensitive electronic components, optical equipment, delicate instruments, semiconductor wafers, and other bulk or sensitive materials that require controlled humidity conditions.

Desiccator Glove Boxes

Desiccator glove boxes, also known as dry boxes or desiccator chambers, provide a controlled environment with low humidity levels and a sealed enclosure for handling sensitive materials. They are designed with built-in gloves that allow users to manipulate samples or equipment without compromising the controlled environment.

Non-Vacuum Glove Boxes: These glove boxes do not require a vacuum seal and are often used for applications where a low-humidity environment is necessary but vacuum conditions are not required.

Vacuum Glove Boxes: These glove boxes incorporate a vacuum system that removes air and moisture from the enclosed space, ensuring an extremely low-humidity environment.

Uses: Desiccator glove boxes are utilized in applications such as semiconductor manufacturing, electronics assembly, pharmaceutical processing, research involving hygroscopic materials, and handling samples or equipment sensitive to moisture and contaminants.

Desiccator Plates and Cartridges

Desiccator plates and cartridges are accessories used within desiccators to enhance moisture removal and efficiency. They are designed to contain desiccant materials, such as silica gel, activated alumina, or molecular sieves, which actively absorb moisture from the desiccator environment.

Desiccator Plates: These are flat or perforated plates that hold desiccant material within the desiccator chamber. They provide a large surface area for effective moisture absorption.

Desiccator Cartridges: These are cylindrical cartridges filled with desiccant material. They can be easily inserted or replaced within the desiccator to maintain the desired humidity levels.

Uses: Desiccator plates and cartridges are used in various desiccators to enhance moisture removal, extend the lifespan of desiccant material, and maintain low-humidity conditions for stored items or sensitive materials.

Automatic Desiccators

Automatic desiccators incorporate electronic controls and sensors to monitor and maintain precise humidity levels automatically. They are equipped with features such as humidity sensors, electronic controllers, and desiccant regeneration systems.

Desiccant Regeneration Systems: Some automatic desiccators include desiccant regeneration systems that remove moisture from the desiccant material, ensuring its effectiveness and prolonging its lifespan.

Programmable Humidity Control: Automatic desiccators allow users to set and control the desired humidity level, which is maintained through continuous monitoring and adjustment by the electronic control system.

Uses: Automatic desiccators are particularly useful in applications where precise and consistent humidity control is critical, such as in pharmaceutical manufacturing, electronics assembly, and research involving highly sensitive materials.

Desiccator Accessories

Desiccators can be enhanced with various accessories to optimize their functionality and performancea. Desiccant Indicators: These indicators change color to indicate the moisture level inside the desiccator. They provide a visual cue for when the desiccant needs to be regenerated or replaced.

Desiccant Storage Containers: These containers are designed to hold spare desiccant material and protect it from moisture until it is ready for use.

Desiccant Regeneration Ovens: These ovens are used to regenerate saturated desiccant material by removing moisture and restoring its moisture-absorbing capabilities.

Vacuum Pumps: Vacuum pumps are used to create and maintain a vacuum seal in vacuum desiccators. They ensure efficient moisture removal and optimal performance.

Uses: Desiccator accessories enhance the functionality and performance of desiccators, allowing for more precise moisture control, extended desiccant lifespan, and convenient storage and regeneration of desiccant materials.


Laboratory desiccators are essential tools for maintaining a low-humidity environment and preserving moisture-sensitive materials in scientific, research, and industrial settings. Global Lab Supply offers a diverse range of high-quality desiccators designed to meet the specific requirements of laboratories and industries. By understanding the different types of laboratory desiccators and their uses, you can make informed decisions when selecting the appropriate desiccator for your applications.

Whether it’s vacuum desiccators, desiccator cabinets, desiccator glove boxes, or automatic desiccators, Global Lab Supply provides reliable and durable solutions to meet your moisture control needs. By investing in quality desiccators and following proper maintenance practices, you can ensure the longevity, efficiency, and effectiveness of your desiccators, enabling you to maintain optimal moisture control and preserve the integrity of your samples and equipment. Trust Global Lab Supply for all your laboratory desiccator needs, and experience the benefits of high-quality equipment in your scientific endeavors.

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