Baker SterilGARD e3 SG404 biosafety cabinet

by Baker

SKU 0877J BIO CAB

FULLY TESTED & WARRANTIED*

The Baker SterilGARD e3 SG404 biosafety cabinet is the most energy efficient biosafety cabinet available today. The newly redesigned airflow management system saves energy and improves both user comfort and safety.

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All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

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to request information & pricing for item 0877J BIO CAB

Baker SterilGARD III SG404 Biosafety Cabinet – Refurbished

The Baker SterilGARD III SG404 biosafety cabinet is designed to provide personnel, product, and environmental protection for laboratory procedures requiring HEPA-filtered airflow and contamination control. Commonly used for cell culture, microbiology, pharmaceutical, and research laboratory applications, this refurbished Baker biosafety cabinet offers reliable containment performance for laboratories requiring clean working conditions and sterile sample handling.

At American Instrument Exchange, each biosafety cabinet is inspected and tested by our technicians prior to shipment. Unless otherwise specified, new HEPA filters are installed at our facility before delivery.

Baker SterilGARD III SG404 key Features

· Class II Type A2 biosafety cabinet

· 90-day warranty included from American Instrument Exchange

· Includes stand and new HEPA filters

· Designed for personnel, product, and environmental protection

· Suitable for cell culture and microbiology workflows

· Refurbished and tested by American Instrument Exchange

· HEPA-filtered airflow for contamination control

· Ideal for research, pharmaceutical, and clinical laboratories

Baker SterilGARD III SG404 Overview

The Baker SterilGARD III SG404 is a Class II Type A2 biosafety cabinet designed for laboratory environments requiring contamination control, sterile airflow, and operator protection. Baker biosafety cabinets are widely used throughout research, pharmaceutical, biotechnology, clinical, and academic laboratories because of their airflow stability, ergonomic workspace design, and long-standing reputation in laboratory containment equipment.

This cabinet configuration is commonly used for sterile laboratory workflows involving biological samples, tissue culture procedures, microbiology applications, and other laboratory tasks requiring both operator protection and product protection. The cabinet’s airflow system is designed to help maintain clean working conditions while minimizing particulate contamination within the work area.

Features may include a stainless steel work surface, integrated lighting, ergonomic sash design, airflow monitoring systems, and low-noise blower operation depending on the specific configuration of the unit.

Baker SterilGARD III SG404 Common Applications

The Baker SterilGARD III SG404 biosafety cabinet is commonly used for laboratory procedures requiring sterile airflow and contamination control. Typical applications include cell culture workflows, microbiology procedures, tissue culture applications, pharmaceutical research, sterile sample preparation, and other biological laboratory procedures where product protection and personnel protection are important.

This biosafety cabinet may also be appropriate for biotechnology laboratories, hospital laboratories, research universities, clinical testing facilities, and life science laboratories performing contamination-sensitive workflows or biological research applications.

Baker SterilGARD III SG404 Ideal Laboratory Environments

This biosafety cabinet may be suitable for a wide range of laboratory environments including biotechnology laboratories, academic research facilities, pharmaceutical production environments, hospital laboratories, government research institutions, and cleanroom applications.

Its containment-focused airflow design makes it appropriate for laboratories requiring controlled working conditions for biological procedures, sterile workflows, and sensitive laboratory applications involving contamination control.

Baker SterilGARD III SG404 Key Specifications

Specification	Details
Manufacturer	Baker
Model	SterilGARD III SG404
Cabinet Class	Class II Type A2
Exterior Dimensions	53.75"W x 30.5"D x 61.75"H (not including stand)
Interior Worksurface Dimensions	46"W x 24.5"D x 27.5"H
Electrical Requirements	115V, 60Hz, 15amp
Weight	Approximately 585lbs.
Included Accessories	Stand and new HEPA filters
Warranty	90-day warranty

Baker SterilGARD III SG404 Refurbishment and Testing

American Instrument Exchange has extensive experience refurbishing used biosafety cabinets for laboratory and cleanroom environments.

Each biosafety cabinet is inspected by our technicians to verify proper blower operation, control functionality, airflow performance, lighting operation, cabinet integrity, and overall system condition prior to shipment. Unless otherwise specified, new HEPA filters are installed at our facility before delivery.

Testing procedures include major elements associated with biosafety cabinet certification to help support certification readiness upon installation at your facility. Final certification should be completed by qualified field technicians after installation in accordance with laboratory and facility requirements.

Certification Readiness

Biosafety cabinets should be certified by qualified field technicians after installation and before laboratory use.

American Instrument Exchange performs functional testing prior to shipment to support certification readiness upon arrival. Buyers should confirm facility compatibility, electrical requirements, airflow requirements, and certification standards prior to installation.

Certification services are available through our affiliate company, AIE Laboratory Services.

Certification requirements may vary depending on laboratory protocols, facility standards, and application requirements.

Shipping and Installation Considerations

Biosafety cabinets are oversized laboratory instruments that may require special handling during transportation, delivery, and installation. Buyers should confirm laboratory access dimensions, doorway clearances, electrical compatibility, and final cabinet placement before shipment.

Depending on the installation environment, liftgate delivery, inside delivery services, rigging assistance, or coordinated facility access may be recommended.

Frequently Asked Questions

What are some of the features that make the Baker SterilGard SG404 a good investment?

Because of the improvements in efficiency annual operating costs for the SG404 can be up to 70% lower than compared to the Baker SG403 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 SG404, however, the hinged front panel swings up, similar to the hood of a car, allowing for quicker and easier HEPA filter replacement.

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.

Are the Baker Sterilgard SG404 units as durable as the older SG400 models?

Time will tell, although all indications are that these units will have some serious longevity. As of this writing we still see some Baker SG400 models in the field – every now and then our certifiers will come across a unit that is older than they are.

Will the Sterilgard 404s 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.

Why do you install new HEPA filters in the Baker SG404 before shipping to customers?

New filters for a Baker SterilGard SG404, 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 completely 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.

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. While we may not be able to test for specific analytical applications we do our best to simulate the conditions under which the equipment will be used in your lab. If you have particular testing requirements please let us know and we’ll work with you to make sure these are addressed during testing.

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. In many cases we can offer inside delivery. Customers are also welcome to make pick-up arrangements using their own preferred carrier.

All shipments are FOB Haverhill, MA. American Instrument Exchange will take reasonable steps to protect the equipment during shipment and the equipment will be fully insured. The customer will be charged for all shipping and handling charges, and fees incurred in the process of delivering the order.

For local customers in and around New England we can offer shipping and delivery using a local moving company trained by our staff to handle and deliver lab equipment. Our local movers can provide either standard dock-to-dock delivery or bring the equipment into your lab and set it in place.

Prior to signing the POD (Proof of Delivery), you are responsible for inspecting the goods for any damage. You MUST note any damage on the POD prior to letting the driver leave. This is to protect you, the receiver of the goods in the unlikely event of any damage. Once you sign the POD free and clear from damage, the goods are then deemed delivered in good order and no further claims would be applicable. This is the standard for all transportation so we want to protect you, our valued client.

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 by American Instrument or a technician hired by/vetted by American Instrument Exchange’s during the warranty period. The customer will be responsible for proper packaging of the equipment and all included accessories.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues will be subject to a cancellation and restocking fee of between 20% and 40% and responsible for the full total of the shipping & handling costs for both the delivery and the return of the equipment.

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.