Cleanroom Testing and Certification Services
Regulatory Guidance / Test Methods:
We test and certify cleanrooms to ensure that facilities are compliant with the required standards and customer specifications. Our services are designed to meet regulatory, industry, and certification requirements according to various standards including: ISO, cGMP, CNBT, NSF, FDA, IEST, among others.
Cleanrooms should be certified annually at a minimum to ensure compliance with industry, regulatory, and client standards. Some clients certify every 3 or 6 months. In addition, tests should be performed after any significant changes in the cleanroom (i.e construction, equipment upgrades)
Primary Services
Filter Airflow Volume/Velocity and Uniformity
Filter leak tests
Non-viable particle counting cleanliness test
Room pressurization
Additional Services
Airflow visualization
Temp/RH% Testing
Light level testing
Sounds Level testing
Magnehelic gauge calibration and installation
HEPA filter replacement
Room recovery testing
Compressed Air/Gas Testing
Viable air and surface sampling
Mag Gauge Testing / Installation / Calibration
Thinking About Switching Your Cleanroom Provider?
If you’re frustrated with poor communication, slow reporting, scheduling delays, or untrained technicians, you’re not alone. These issues can disrupt your operations, cause unnecessary stress, and risk compliance. At CSI Testing, we’ve built our services to eliminate these frustrations and provide industry-leading support.
Here’s how we’re different:

Exceptional Communication
We put communication first. Our team proactively works with you to schedule recertifications and ensure you never fall behind on compliance. We’re always available to provide clear, timely updates, so you’re never left guessing.

Fast, Accurate Reporting
Get the information you need when you need it. We provide hood reports the same day and deliver viable results within 14 days—an industry-leading standard.

Reliable Scheduling
We respect your time and keep your projects on track. If something urgent comes up, our local technicians are ready to be on-site ASAP, minimizing downtime and ensuring your operations stay on schedule.

Highly Trained Technicians
Our technicians undergo routine training sessions at our fully equipped, in-house training center. Certified and accredited by NEBB, CETA, and NSF, they bring unmatched professionalism and expertise to every cleanroom.
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Why Choose CSI Testing
CSI has tested and certified controlled environments for over 45 years. When we started CSI testing we serviced Minneapolis and the surrounding areas. Today we service the entire Midwest and the New England area. Our team has over 100 collective years of experience in the industry, serving over 600 medical device, pharmaceutical, academic, and other clients.
We test, certify, and service all controlled environments, including cleanrooms, biosafety cabinets, fume hoods, and isolators. We provide biosafety cabinets, cleanbenches and fume hood reports the same-day, and turnaround electronic cleanroom reports in two weeks. For any emergency, we can get a technician to your site quickly.
We are proudly 100% founder and employee owned. CSI is a certified minority business enterprise.

Experience
45 years of company history

Quality
Highly trained technicians (average 10-year tenure)

Report Turnaround
2 weeks for cleanrooms, same-day for hoods, BSCs, etc.

Urgency
We take emergency calls seriously. We can get technicians on-site quickly

People
Founder and employee-owned. Certified minority business enterprise

Our Locations
We are a regional service provider
We primarily service the below states:
Minnesota
Minneapolis
Saint Paul
Rochester
We also service these additional states through our sister companies at the Scientific Safety Alliance:
Virginia
West Virginia
North Carolina
Washington DC
Maryland
South Carolina
Kentucky
Tennessee
Wyoming
Montana
As a regional service provider, CSI Testing provides scientific safety services across the United States. We offer regional coverage through our network of partner companies to better serve your facilities.