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Baker SterilGARD e3 SG604 Class II Type A2 Biosafety Cabinet
Refurbished Baker SterilGARD e3 SG604 Biosafety Cabinet for Sale
The Baker SterilGARD e3 SG604 is a 6-foot Class II Type A2 biosafety cabinet engineered for laboratories that require maximum workspace without compromising biological containment. Designed for pharmaceutical manufacturing, biotechnology research, clinical laboratories, and high-throughput research environments, the SG604 combines Baker's advanced airflow engineering with exceptional operator comfort and industry-leading energy efficiency.
With its expansive 6-foot work area, the SG604 provides ample space for large culture vessels, multiple sample racks, laboratory instruments, and complex biological procedures. The cabinet maintains ISO Class 5 product protection through HEPA-filtered vertical laminar airflow while simultaneously protecting laboratory personnel and the surrounding environment from potentially hazardous biological aerosols.
The Baker SG604 is particularly well suited for laboratories where biosafety cabinets operate continuously throughout the workday. Its electronically commutated (ECM) blower motor, energy-saving standby mode, and ergonomic design help reduce operating costs while providing the dependable containment performance expected from one of the industry's most respected biosafety cabinet manufacturers.
At American Instrument Exchange, every Baker SG604 biosafety cabinet is inspected and tested by our technicians before shipment. Unless otherwise specified, new HEPA filters are installed at our facility prior to delivery. Laboratories outfitting new research facilities or expanding existing operations may also browse our inventory of refurbished biosafety cabinets, CO₂ incubators, centrifuges, laboratory refrigerators, ultra-low temperature freezers, autoclaves, and additional laboratory equipment to complete an integrated laboratory workflow.
Baker SterilGARD e3 SG604 Biosafety Cabinet Key Features
Class II Type A2 biosafety cabinet
Approximately 6-foot nominal cabinet width
Extra-large work area for high-throughput laboratory workflows
Vertical laminar airflow with HEPA-filtered supply and exhaust air
Baker SterilGARD e3 airflow technology
Electronically commutated (ECM) blower motor
ReadySAFE energy-saving standby mode
Ergonomic 10-degree sloped front sash
LED work area lighting
Digital airflow monitoring and cabinet controls
Hydraulic lift stand included
Ideal for pharmaceutical, biotechnology, GMP, and research laboratories
The Baker SterilGARD e3 SG604 was developed for laboratories requiring the largest standard work area in the SterilGARD e3 product family. Designed around Baker's advanced airflow management system, the SG604 provides stable airflow performance while consuming substantially less energy than many previous-generation biosafety cabinets.
As a Class II Type A2 biosafety cabinet, the SG604 uses inward airflow to protect laboratory personnel while HEPA-filtered vertical laminar airflow creates an ISO Class 5 work environment for contamination-sensitive biological procedures. HEPA-filtered exhaust air protects the surrounding laboratory, allowing the cabinet to support a broad range of microbiology, pharmaceutical, biotechnology, and clinical laboratory applications.
The generous 6-foot workspace provides flexibility for laboratories processing large numbers of samples, using multiple laboratory instruments inside the cabinet, or handling oversized culture vessels and production-scale workflows. Researchers benefit from additional organization space while maintaining proper aseptic technique and biological containment.
Combined with Baker's quiet ECM blower motor, ReadySAFE standby mode, ergonomic front sash, and intuitive operator controls, the SG604 delivers exceptional containment performance while helping laboratories reduce long-term operating expenses.
Why Choose the Baker SG604?
For laboratories performing high-volume biological research or pharmaceutical production, workspace directly affects productivity. The Baker SG604 provides one of the largest usable work areas available in a Class II Type A2 biosafety cabinet, allowing researchers to organize multiple culture vessels, reagent containers, pipettes, laboratory instruments, and sample racks without overcrowding the work surface.
The cabinet's larger work area is especially valuable for biotechnology companies, pharmaceutical quality control laboratories, vaccine development facilities, contract research organizations, and university core laboratories that routinely process large sample volumes or support multiple researchers throughout the day.
Like the rest of the SterilGARD e3 family, the SG604 incorporates Baker's electronically commutated (ECM) blower motor, which continuously adjusts airflow as filter loading changes over time. Compared with conventional blower systems, ECM technology delivers improved airflow stability while reducing electrical consumption and extending blower efficiency.
The cabinet also incorporates Baker's ReadySAFE standby mode, allowing laboratories to reduce energy consumption during periods of inactivity while maintaining a clean work environment. Combined with the ergonomic front sash, hydraulic lift stand, LED lighting, and digital monitoring system, the SG604 provides an outstanding combination of biological containment, operator comfort, and long-term value.
Baker SG604 vs. Older Baker Biosafety Cabinets
The Baker SG604 represents a significant advancement over previous generations of SterilGARD biosafety cabinets. While earlier models established Baker's reputation for dependable biological containment, the SG604 introduces numerous improvements focused on efficiency, ergonomics, and long-term operating costs.
Its electronically commutated blower motor automatically maintains proper airflow as HEPA filters gradually load, providing more consistent performance while using considerably less electricity than traditional blower motors. The cabinet also incorporates ReadySAFE standby operation, LED lighting, modern digital controls, and an ergonomic sash design that improves operator comfort during extended laboratory procedures.
For laboratories replacing an older 6-foot biosafety cabinet, the SG604 offers an opportunity to improve productivity, reduce energy consumption, and modernize laboratory containment equipment while maintaining the airflow performance and reliability for which Baker biosafety cabinets are recognized.
Compatible Laboratory Equipment
The Baker SG604 is commonly integrated into complete laboratory workflows supporting biotechnology research, pharmaceutical manufacturing, vaccine development, and clinical diagnostics. Its spacious work area makes it particularly well suited for laboratories operating multiple incubators, centrifuges, cold storage systems, and analytical instruments.
American Instrument Exchange maintains a broad inventory of professionally refurbished laboratory equipment, allowing customers to source compatible instruments from a single supplier while simplifying procurement and reducing lead times.
Common Applications
The Baker SG604 is designed for demanding laboratory environments requiring a large biological safety cabinet capable of supporting complex workflows and high sample throughput.
Typical applications include:
Mammalian cell culture
Stem cell research
Pharmaceutical manufacturing support
Vaccine development
Biopharmaceutical research
Molecular biology
Microbiology
Virology
Gene and cell therapy research
Clinical diagnostics
Pharmaceutical quality control
Contract research organizations
Government and university research laboratories
Ideal Laboratory Environments
The Baker SG604 is frequently installed in biotechnology companies, pharmaceutical manufacturers, university core laboratories, hospital research centers, contract research organizations, public health laboratories, and GMP production support facilities. Its larger work area is particularly beneficial for laboratories processing higher sample volumes, utilizing multiple instruments inside the cabinet, or supporting collaborative research projects.
The combination of dependable airflow performance, ergonomic operation, modern digital controls, and energy-efficient engineering makes the SG604 an excellent choice for laboratories requiring continuous daily operation while maintaining Class II Type A2 biological containment.
Specifications compiled from Baker manufacturer literature, distributor technical references, and American Instrument Exchange product information.
Why Buy a Refurbished Baker Biosafety Cabinet?
For decades, Baker biosafety cabinets have been recognized throughout the biotechnology, pharmaceutical, clinical, and academic research communities for their exceptional build quality, dependable airflow performance, and long service life. Many laboratories continue operating Baker cabinets for years because of their durable construction, stable airflow systems, and ongoing manufacturer support.
Purchasing a professionally refurbished Baker SG604 allows laboratories to obtain a premium biological safety cabinet while significantly reducing capital equipment costs compared to purchasing new. Combined with modern features such as the electronically commutated (ECM) blower motor, energy-saving standby mode, and ergonomic operator design, the SG604 offers an excellent balance of performance, reliability, and long-term value.
For laboratories expanding existing facilities, replacing aging biosafety cabinets, or establishing new research programs, a refurbished Baker SG604 provides an economical solution without sacrificing the biological containment and operator protection expected from one of the industry's most respected biosafety cabinet manufacturers.
Refurbishment & Testing Process
Every Baker SG604 biosafety cabinet received by American Instrument Exchange undergoes a comprehensive inspection, cleaning, and refurbishment process before being offered for sale. Our technicians evaluate the cabinet's mechanical, electrical, and airflow systems to verify proper operation and identify any components requiring service or replacement.
Unless otherwise specified, new HEPA filters are installed at our facility before shipment. The blower system, control panel, sash operation, alarms, lighting, and cabinet controls are thoroughly inspected and tested to verify reliable performance. Interior and exterior surfaces are professionally cleaned, and worn cosmetic or functional components are repaired or replaced whenever practical.
Each refurbished SG604 is prepared for installation and field certification so laboratories can place the cabinet into service following certification.
Certification Readiness
Proper certification is essential whenever a biosafety cabinet is installed, relocated, or returned to service. Following refurbishment, the Baker SG604 is prepared for field certification to verify airflow performance, HEPA filter integrity, cabinet pressurization, and overall compliance with current NSF/ANSI 49 certification requirements.
For laboratories throughout New England, AIE Laboratory Services provides on-site biosafety cabinet certification, preventative maintenance, HEPA filter replacement, repairs, relocation services, and annual recertification. Our experienced field technicians help laboratories maintain regulatory compliance while maximizing equipment reliability throughout the life of the cabinet.
Shipping & Installation
The Baker SG604 is professionally packaged for shipment using commercial laboratory equipment packaging designed to protect the cabinet during transportation. Because biosafety cabinets are precision airflow devices, proper handling during shipping, delivery, and installation is critical to maintaining cabinet performance.
American Instrument Exchange can assist customers with freight coordination, inside delivery, laboratory placement, and installation planning. Regional installation assistance is also available. Following installation, the cabinet should be certified before biological research or production activities begin.
Related Laboratory Equipment
Many laboratories purchasing a Baker SG604 also require additional equipment to complete a fully integrated biological research or pharmaceutical laboratory. American Instrument Exchange offers a broad inventory of professionally refurbished laboratory equipment that complements the SG604 and supports sterile laboratory workflows.
Frequently paired equipment includes:
CO₂ incubators for mammalian cell culture and microbial incubation
Refrigerated and floor-model centrifuges for high-volume sample preparation
Laboratory refrigerators and ultra-low temperature freezers for reagent and specimen storage
Compound and inverted microscopes for cell analysis
Laboratory autoclaves for sterilization of instruments, media, and biological waste
Laboratory water baths for warming media and reagents
Cryogenic storage systems for long-term biological sample preservation
Purchasing compatible laboratory equipment from a single supplier simplifies procurement, shortens lead times, and helps laboratories establish consistent refurbishment quality across multiple instruments.
Frequently Asked Questions
What type of biosafety cabinet is the Baker SG604?
The Baker SG604 is a Class II Type A2 biosafety cabinet that provides personnel, product, and environmental protection for biological research, microbiology, pharmaceutical, and clinical laboratory applications.
Why choose a 6-foot biosafety cabinet?
A 6-foot biosafety cabinet provides substantially more usable workspace than smaller models, making it ideal for larger culture vessels, multiple laboratory instruments, higher sample throughput, and collaborative workflows involving more than one operator.
Does the SG604 include new HEPA filters?
Unless otherwise specified, American Instrument Exchange installs new HEPA filters before shipment as part of our refurbishment process.
Is the Baker SG604 appropriate for pharmaceutical laboratories?
Yes. The SG604 is widely used in pharmaceutical research, biotechnology, vaccine development, quality control laboratories, and other environments requiring dependable biological containment and an ISO Class 5 work area.
Does the cabinet require certification?
Yes. Like all biosafety cabinets, the Baker SG604 should be certified after installation or relocation and recertified at regular intervals to verify airflow performance and HEPA filter integrity in accordance with NSF/ANSI 49 guidance.
Can American Instrument Exchange provide certification services?
Yes. Through AIE Laboratory Services, we provide biosafety cabinet certification, preventative maintenance, HEPA filter replacement, repairs, equipment relocation, and ongoing field service throughout New England.
Is the Baker SG604 energy efficient?
Yes. The SG604 utilizes an electronically commutated (ECM) blower motor together with Baker's ReadySAFE standby operating mode to reduce energy consumption while maintaining stable airflow performance compared with many earlier-generation biosafety cabinets.
Why purchase a refurbished Baker SG604 from American Instrument Exchange?
Every Baker SG604 undergoes inspection, testing, cleaning, and refurbishment by experienced technicians before shipment. Combined with new HEPA filters (unless otherwise specified), responsive customer support, optional field certification, and ongoing service through AIE Laboratory Services, a refurbished SG604 provides laboratories with a dependable and cost-effective alternative to purchasing new equipment.
Click Here to see the Baker SG604 on the American Instrument Exchange YouTube channel.
Click Here to read a review of this product on our blog!
Q: What are some of the features that make the Baker SterilGard SG604 a good investment?
A: Because of the improvements in efficiency annual operating costs for the SG604 can be up to 70% lower than compared to the Baker SG603 models. A lot of this reduction can be attributed to the new StediFLOW variable frequency drive motor, which can accommodate increases in pressure drops of up to 300% across the filter with almost no reduction in total air delivery.
One of our favorite features is the fold up front panel that allows for frontloading filters. For most biosafety cabinets, including older Baker units, removing the front panel is a time and labor-intensive activity. With the SG604, however, the front panel is hinged and swings up, similar to the hood of a car, allowing for quicker and easier HEPA filter replacement.
While this sounds like a small improvement, but if you work with biosafety cabinets as frequently as we do you will quickly begin to appreciate how great this design is.
Q: Are the Baker Sterilgard SG604 units as durable as the older SG600 models?
A: Time will tell, although all indications are that these units will have some serious longevity. As of this writing we still see some Baker SG600 models in the field – every now and then our certifiers will come across a unit that is older than they are.
Will the Sterilgard 604s last this long? They are certainly quality built, as are all Baker products, with quality materials and a good design. We’re looking forward to working with these units for many years to come.
Q: Why do you install new HEPA filters in the Baker SG604 before shipping to customers?
A: New filters for a Baker SterilGard SG604, plus the cost of installation, can total anywhere from $2,000 to $3,500 or more, depending on your location and what your certifier charges for installation. We install new HEPA filters in every biosafety cabinet and clean bench prior to shipment.
If you’re purchasing a used biosafety cabinet without filters, there’s no way to know for sure that it works properly.
If you’re buying a used biosafety cabinet with old filters, you may not be able to determine the age of the filters or safe operating time remaining, plus there are concerns of contamination.
Installing new filters is the best way for us to guarantee that each biosafety cabinet works to specification and is fully decontaminated.
Testing Procedures for Used and Refurbished Laboratory Equipment
Ensure Accuracy, Safety, and Dependable Performance Across Applications
At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.
Why Testing Used Lab Equipment Is Essential
Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:
• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features
Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.
Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.
Key Testing Procedures for Refurbished and Used Laboratory Equipment
1. Initial Visual Inspection
• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged
2. Functional Startup and Operational Testing
• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions
3. Testing and Performance Verification
• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type
4. Mechanical and Electrical System Testing
• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance
5. Safety and Compliance Checks
• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable
6. Final Quality Assurance and Documentation
• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery
Trusted Quality from American Instrument Exchange
With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.
Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.
Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange
At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.
Why Choose Refurbished Lab Equipment from American Instrument Exchange?
• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience
Step-by-Step Refurbishment Protocol
Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:
1. Initial Intake & Inspection
• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement
2. Cleaning and Decontamination
• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters
3. Mechanical and Electrical Repair
• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies
4. Functional System Testing
• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability
5. Testing and Performance Verification
• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles
6. Safety and Compliance Checks
• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification
7. Final Quality Assurance and Documentation
• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing results, and repair logs
• Final cleaning and visual inspection
Trust the Experts at American Instrument Exchange
With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.
Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.
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.
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.
