VWR 9000 Humidity Test Chamber

Brand : VWR

Product Code : SKU 3188 INC

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VWR 9000 Humidity Test Chamber

The VWR 9000 Humidity Test Chamber is a 5 cu. ft. environmental chamber designed for laboratory and industrial applications requiring controlled temperature and relative humidity. With temperature capability up to 70°C, a 40% to 95% relative humidity range, vapor-generator humidification, and active dehumidification, the VWR 9000 provides a controlled environment for stability studies, materials testing, product evaluation, quality control, and other temperature- and humidity-dependent procedures.

Available used and refurbished from American Instrument Exchange, the VWR 9000 represents a practical option for laboratories that need environmental testing capability without the expense or complexity of a newer programmable stability chamber. Although this is an older-generation system, its straightforward temperature and humidity controls make it useful for continuous testing at established environmental conditions where sophisticated ramping, cycling, refrigeration, or data-management features are not required.

Key Features

5.0 cu. ft. environmental test chamber
Temperature operation from approximately 35°C to 70°C
Relative humidity range from 40% to 95% RH
Low-pressure vapor generator for controlled humidification
Water vapor introduced into circulating chamber airflow
Exhaust-fan dehumidification system
Designed for simultaneous temperature and humidity control
Suitable for laboratory, industrial, stability, and quality-control testing
Straightforward older-generation design for continuous-duty applications
Professionally inspected and tested by American Instrument Exchange
90-day warranty included

VWR 9000 Humidity Test Chamber Overview

The VWR 9000 is an older-generation environmental chamber designed to maintain controlled temperature and relative humidity conditions within a single 5 cu. ft. chamber. Unlike a conventional laboratory incubator, which primarily provides elevated temperature, the VWR 9000 allows researchers and quality-control personnel to expose samples to a controlled combination of heat and moisture.

This makes the chamber useful for applications in which humidity can influence product stability, material properties, packaging performance, component reliability, or other physical characteristics. Rather than relying on ambient laboratory conditions, users can establish a defined environment and maintain samples under those conditions for a predetermined period.

Humidification is accomplished using a low-pressure vapor generator. Water vapor is injected through a small orifice and introduced into the chamber at the blower discharge, allowing moisture to mix with the circulating air before reaching the test samples.

The VWR 9000 also incorporates an exhaust-fan dehumidification system, allowing the chamber to remove moisture when required to maintain the selected relative humidity. The combination of active humidification, dehumidification, heating, and air circulation allows the chamber to maintain environmental conditions that cannot be reproduced with a conventional warm-air incubator.

For laboratories that need straightforward environmental testing at fixed conditions, the older VWR 9000 can still provide useful capability without requiring investment in a larger or more sophisticated modern stability chamber.

Common Applications

The VWR 9000 is suitable for environmental testing, stability studies, accelerated aging, materials research, product development, pharmaceutical and biotechnology quality control, packaging evaluation, component testing, and other applications where both temperature and relative humidity can influence sample performance.

The chamber may be particularly useful for laboratories evaluating how materials or products respond to prolonged exposure to warm, humid conditions. Depending on the testing protocol, this can include packaging materials, plastics, coatings, adhesives, electronic components, manufactured products, laboratory consumables, and research samples.

Pharmaceutical, biotechnology, and life science laboratories may also use controlled-humidity chambers for certain stability and quality-control procedures where defined temperature and RH conditions must be maintained over time.

For laboratories building broader environmental-testing capabilities, American Instrument Exchange also offers laboratory incubators, laboratory ovens, laboratory refrigerators, and laboratory freezers for testing and storage across a wider range of temperature conditions.

Typical Samples & Testing Applications

Because the VWR 9000 controls both temperature and humidity, it can be used for a wider range of environmental testing procedures than a conventional general-purpose incubator.

Common Samples & Materials

Pharmaceutical and biotechnology test samples
Packaging and container materials
Plastics and polymers
Coatings and adhesives
Electronic and mechanical components
Manufactured products and assemblies
Laboratory consumables
Research and quality-control samples

Typical Testing Applications

Temperature and humidity exposure
Stability studies
Accelerated aging
Product shelf-life evaluation
Packaging studies
Materials testing
Quality-control testing
Component and product reliability studies

The suitability of the VWR 9000 for a particular protocol depends on the required combination of temperature, relative humidity, test duration, and sample load. Because this is a non-refrigerated chamber, it is best suited for warm environmental conditions rather than studies requiring temperatures at or below ambient.

Temperature & Humidity Control

The defining capability of the VWR 9000 is its ability to maintain both elevated temperature and controlled relative humidity. The chamber is designed to maintain temperatures between approximately 35°C and 70°C, with an operating specification of approximately ambient +10°C at the lower end depending on laboratory conditions.

Relative humidity can be controlled from approximately 40% to 95% RH, although the achievable humidity range at any given time can depend on the selected chamber temperature and surrounding environmental conditions. As with most environmental chambers, temperature and relative humidity capabilities should therefore be considered together rather than as completely independent operating ranges.

Humidity is generated by a low-pressure vapor system that injects water vapor into the chamber at the blower discharge. Introducing moisture into the moving air stream helps distribute humidity throughout the chamber rather than concentrating it around the water source.

When humidity must be reduced, the VWR 9000 uses an exhaust-fan dehumidification system. Together, the humidification and dehumidification systems allow the chamber to respond to changing moisture conditions and maintain a controlled test environment.

For laboratories considering an older humidity chamber such as the VWR 9000, the simplicity of the system can be an advantage when the application calls for prolonged operation at a stable temperature and humidity setpoint. Laboratories requiring complex programmable profiles, refrigerated operation, very low humidity, or modern electronic data logging may be better served by a newer environmental or stability chamber.

VWR 9000 Humidity Test Chamber Specifications

Specification	Details
Manufacturer	VWR
Model	9000
Equipment Type	Humidity / Environmental Test Chamber
Chamber Capacity	5.0 cu. ft.
Temperature Range	Approximately 35°C to 70°C
Temperature Capability	Ambient +10°C to 70°C
Relative Humidity Range	40% to 95% RH
Humidification System	Low-pressure vapor generator
Humidity Distribution	Vapor introduced at blower discharge
Dehumidification	Exhaust-fan system
Air Circulation	Blower-assisted
Refrigeration	None
Chamber Type	Single chamber
Intended Operation	Controlled temperature and relative humidity testing
Electrical Requirements	Confirm individual unit
Interior Dimensions	Confirm individual unit
Exterior Dimensions	Confirm individual unit

Specifications are based on information available for the VWR 9000 platform and the individual American Instrument Exchange listing. Because this is an older model, specifications and configurations may vary. Confirm dimensions, electrical requirements, water requirements, controls, and included accessories for the individual chamber before purchase.

VWR 9000 Humidity Test Chamber Frequently Asked Questions

What is the VWR 9000 designed to do?

The VWR 9000 is designed to expose samples to controlled temperature and relative humidity conditions. Unlike a standard incubator that primarily controls temperature, the 9000 can maintain relative humidity between approximately 40% and 95% while operating at elevated temperatures.

What is the humidity range of the VWR 9000?

The chamber is designed for approximately 40% to 95% relative humidity. The achievable RH range can vary with chamber temperature and ambient conditions, so laboratories should confirm that their specific temperature/RH combination falls within the capabilities of the chamber.

How does the VWR 9000 generate humidity?

The chamber uses a low-pressure vapor generator that injects water vapor into the circulating air at the blower discharge. This allows moisture to mix with the chamber airflow and helps establish controlled humidity conditions around the test samples.

Can the VWR 9000 reduce humidity as well as add moisture?

Yes. In addition to the vapor-generator humidification system, the VWR 9000 incorporates an exhaust-fan dehumidification system to help reduce chamber moisture and maintain the selected relative humidity.

Is the VWR 9000 suitable for pharmaceutical stability testing?

The VWR 9000 can be useful for stability and environmental exposure studies when the required conditions fall within its temperature and humidity capabilities. Because it is an older-generation chamber without refrigeration or the advanced programming and documentation features found on newer stability chambers, laboratories working under regulated protocols should confirm that the equipment and monitoring methods meet their specific procedural requirements.

Is this VWR 9000 humidity chamber refurbished?

Used VWR 9000 humidity chambers offered by American Instrument Exchange are inspected, cleaned, and tested prior to shipment. Temperature-controlled equipment is evaluated using calibrated temperature-monitoring equipment, and the temperature, humidity, controls, and other available functions are tested as applicable. Refurbished equipment includes a 90-day warranty.

Testing Procedures for Used and Refurbished Laboratory Incubators
Ensure Quality and Stability Before Use

Used and refurbished laboratory incubators from American Instrument Exchange are thoroughly tested to ensure optimal performance and temperature stability with laboratory safety standards. Each unit undergoes a detailed inspection and functionality assessment to meet the needs of research, clinical, and industrial labs.

Why Testing Used Laboratory Incubators Is Essential

Before a laboratory incubator is reintroduced into any work environment, it must be tested for:
• Temperature uniformity and accuracy
• Airflow and humidity control (if applicable)
• Door seal integrity and insulation effectiveness
• Electrical and safety system compliance

Comprehensive testing reduces the risk of culture loss, contamination, and equipment failure—especially critical in applications involving cell culture, microbiology, pharmaceutical research, and diagnostics.

Our multi-point testing protocol for used and refurbished incubators ensures reliability, safety, and performance across all models and brands.

Key Testing Procedures for Refurbished and Used Laboratory Incubators

1. Initial Visual Inspection
• Check for cosmetic damage, corrosion, and wear to exterior surfaces, door hinges, and gasket seals
• Inspect power cord, wiring, and display panel for any defects or signs of tampering
• Confirm that shelves, chamber components, and internal fixtures are present and undamaged

2. Functional Testing
• Power on the incubator and verify all display indicators and alarms function correctly
• Test door latch and seal mechanisms for proper closure and insulation
• Run basic temperature cycles to ensure the unit maintains stability over time

3. Temperature Accuracy and Uniformity Tests
• Test internal sensors and controllers using temperature probes
• Measure temperature consistency at multiple chamber locations over several hours
• Confirm that programmable temperature settings respond accurately

4. Airflow and Humidity Control (if applicable)
• Test internal fan operation and airflow distribution
• For humidified incubators, inspect and test humidity reservoirs, sensors, and control systems
• Check for condensation buildup and confirm environmental stability

5. Electrical Safety and Compliance Checks
• Ensure all electrical components are properly grounded
• Perform insulation resistance and leakage current tests
• Verify compliance with current electrical safety standards for laboratory equipment

6. Final Quality Assurance Checklist
• Perform full cycle testing at various temperature setpoints
• Document performance benchmarks and results

All refurbished incubators from American Instrument Exchange are backed by our commitment to quality and precision. With our strict testing procedures, you can rely on your incubator to deliver dependable results from day one.

Repair and Refurbishment Protocol for Used Laboratory Incubators
Performance and Quality from American Instrument Exchange

At American Instrument Exchange, every used laboratory incubator we sell goes through a repair and refurbishment protocol. Whether it’s a standard, CO₂, or refrigerated incubator, our goal is to restore each unit to laboratory-level performance—ensuring temperature accuracy, environmental stability, and long-term reliability in your lab.

Why Choose a Refurbished Laboratory Incubator from American Instrument Exchange?

• Fully tested for performance and safety
• Backed by a warranty
• Cost-effective alternative to new equipment
• Environmentally sustainable through reuse and restoration
• Refurbished by expert technicians with decades of lab equipment experience

Step-by-Step Refurbishment Protocol

Every incubator at American Instrument Exchange follows this comprehensive, multi-stage process:

1. Initial Intake & Inspection
• Visual inspection for cosmetic wear, corrosion, dents, or broken components
• Mechanical assessment of door hinges, gaskets, seals, and chamber components
• Document any missing parts or issues requiring repair or replacement

2. Cleaning and Decontamination
• Thorough internal and external cleaning using non-abrasive solutions
• Decontamination/cleaning of surfaces to remove biological, chemical, or particulate residue
• Cleaning of removable parts (e.g., shelves, trays, etc.)

3. Mechanical and Electrical Repair
• Repair or replacement of worn mechanical components such as door latches, fans, hinges, and seals
• Evaluation and repair of control panels, switches, thermostats, and displays
• Inspection and testing of wiring, fuses, relays, and power supplies

4. Environmental Control System Assessment
• For CO₂ incubators: CO₂ sensors, regulators, and gas delivery systems are tested
• For refrigerated incubators: compressors, condensers, and cooling systems are evaluated for performance and leaks
• Fan motors and airflow systems are tested to ensure uniform environmental conditions

5. Temperature and Sensor Testing
• All temperature sensors and controllers are tested using thermometers/probes
• Uniformity and accuracy tested at multiple chamber locations
• For humidified or CO₂ incubators, humidity and CO₂ stability are verified

6. Safety System Testing
• Test of over-temperature protection systems and alarms
• Evaluation of door sensors, safety interlocks, and power failure recovery

7. Final Quality Control and Documentation
• Full performance test run over 24 hours
• Validation of setpoints for temperature, CO₂ (if applicable), and humidity (if applicable)
• Final inspection and cleaning before packaging
• Complete service report

Trust the Experts at American Instrument Exchange

With over 50 years in the lab equipment industry, American Instrument Exchange is a trusted source for high-quality refurbished laboratory incubators. Our proven refurbishment protocol ensures every unit is reliable, accurate, and ready to meet the demands of your lab from day one.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.