Our cleanrooms may stay behind the scenes, but the results are everywhere.

One Source Environmental supports the controlled cleanroom spaces behind the products we rely on every day, through testing, certification, consulting, and engineered solutions.

“Our company’s partnership with One Source Environmental has been wonderful. We are very appreciative of their attention to detail and timely reporting. We truly value their expertise and consistent support.”

Sue Malette, Benchmark
Manufacturing Tech II / Calibration


We’ve got you.

Cleanroom expertise you can trust, every step of the way.

OSE supports teams operating in highly regulated environments to ensure cleanrooms perform as required. We provide certified testing, consulting, and support services that help minimize downtime, maintain compliance, and keep operations running smoothly.

It’s the kind of support you don’t always see, but always rely on.

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Our Cleanroom Services

Cleanroom Certification & Performance Testing

Certified testing to verify cleanroom performance and regulatory compliance.

Cleanroom Consulting, Evaluation & Optimization

On-site diagnostics and compatibility testing ensure equipment meets cleanliness standards.

Biological Safety Cabinets, Fume Hoods & Flow Hood Testing

Routine hood and biosafety cabinet certification ensures safe, sterile laboratory environments.

Two technicians wearing full blue protective cleanroom suits, hoods, and gloves perform maintenance in a sterile white room. One worker stands on a ladder reaching up into an open square panel in the ceiling to install or inspect a circular component, while the second worker stands below looking up and assisting.

Filter Fan Unit (FFU) Installation, Replacement & Maintenance

Energy-efficient filter fan units provide flexible, precise cleanroom airflow control.

Filter Fan Unit (FFU) PLC Control Systems, Commissioning & Control System Integration

PLC-based FFU control systems provide configurable, networked airflow control and monitoring.

Filter Bench Testing, Repair & Replacement

Verify HEPA filter integrity before installation to protect cleanroom performance.

Cleanroom Vacuum Maintenance

Maintenance and certification services keep Nilfisk cleanroom vacuums operating reliably.

Particle Counter Lease & Rentals

Rent portable particle counters with advanced technology for precise contamination monitoring.

When standard solutions don’t cut it.


Engineered Solutions for Cleanroom Environments

OSE provides engineered solutions tailored to specific environmental requirements, supporting cleanroom construction, modifications, and performance improvements. By combining testing expertise, practical experience, and a deep understanding of regulated spaces, we help teams address complex needs with solutions that are reliable, compliant, and purpose-built.

Let’s talk through your requirements.

We will work closely with your team to understand your cleanroom requirements and determine the right path forward. Reach out to start a conversation about your project goals.

Check out some of our recent engineered solutions

See how OSE applies testing, engineering, and expertise to solve real-world cleanroom challenges across regulated environments.


Our focus areas.

Supporting critical industries where clean matters most.

OSE works across industries where environmental control is essential to safety, quality, and performance. Our experience allows us to adapt services and solutions to meet the unique demands of each regulated environment.

Cleanroom use is constantly evolving! Below are some key industries that OSE has experience in. Don’t see yours listed? Get in touch and let’s chat!

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Our Cleanroom Products

Cleanroom Vacuums

We carry the complete line of Nilfisk Vacuum cleaners and accessories including solutions for your toxic, vapor-vac, and explosion-proof needs.

Filter Fan Unit (FFUs)

Filtered Air Technology Filter Fan Unit utilize state of the art 3D fan design and EC Control technology to deliver the best performance on the market. 

HEPA/ULPA Filters

Access a wide selection of high-efficiency filters and surplus equipment through established industry relationships to help you find the right solution for your specific project needs.

Featured Surplus Equipment

  • One Source Environmental (FAT) 8.1 Filter Fan Unit with ULPA filters

    Units are regular profile 47.62”L x 23.62”W x 18”H.
  • One Source Environmental Ultra Clean Mobile Storage Enclosure

    Unit can be operated at a fixed position in a lab or can be connected to a battery unit in order to move critically clean components through unclassified areas to controlled areas. Meets ISO Class 3 requirements.
  • Baker Company Horizontal Flow Hood

    Re-furbished. Filter has been replaced.
  • Nuare Pharma Gard Positive Pressure Recirculating Compounding Aseptic Glovebox Isolator

    Surplus
  • One Source Environmental Vertical Clean Bench with Fixed Sash

    New

Why OSE?

Trusted when performance matters most.

In high-stakes cleanroom projects, experience and execution matter. OSE is trusted by project teams to deliver certified results, solve complex challenges, and support performance when timelines are tight and there’s no room for error.

“OSE has consistently delivered excellent results and is a standout talent in the Cleanroom Certification business.”

Eric Gray

Vice President, F.H. Chase, Inc.


Unsure of next steps?

Let’s talk about your cleanroom requirements. We know the questions to ask!

Whether you’re planning a new space, preparing for certification, or addressing performance challenges, OSE is here to help. Our team is ready to support your next step.