Our Approach
A customized, standards-driven approach to cleanroom performance and certification focuses on tailoring testing strategies to unique operational requirements and providing long-term lifecycle support to protect the integrity of controlled environments.
Tailored for critical cleanliness
Customized and Standards-Driven Performance Testing and Certification
One Source Environmental takes a highly customized, standards-driven approach to cleanroom performance, certification, and support.
With nearly three decades dedicated specifically to cleanroom performance testing, we partner closely with Quality Assurance and Facilities teams to develop testing strategies that blend applicable industry standards with each client’s unique operational requirements.
Rather than applying a one-size-fits-all checklist, we tailor every certification and performance program based on cleanroom size, classification, process sensitivity, and industry-specific variables.
Using state-of-the-art, company-owned instrumentation calibrated to manufacturer specifications, we conduct detailed testing and deliver comprehensive, client-organized reports that clearly outline procedures, results, and any non-conforming findings with corrective recommendations.

OSE at a glance:
When standard solutions don’t cut it.
Optimization, Consulting, and Lifecycle Support

Beyond certification, our approach extends to optimization, consulting, and lifecycle support.
We evaluate aging or evolving cleanroom environments, diagnose performance gaps, and help clients restore or enhance environmental control to protect product quality and yield.
Whether performing in-house product compatibility testing in our ISO-5 cleanroom, integrating FFU control systems, bench testing HEPA filters to assign accountability, or maintaining fleets of cleanroom vacuums with detailed asset tracking, our focus remains consistent: protect the integrity of controlled environments while minimizing risk, downtime, and disputes.
Through technical expertise, rigorous documentation, and hands-on collaboration, One Source Environmental positions itself not just as a testing vendor, but as a long-term cleanroom performance partner.
Reach out to start a conversation about your project goals.

Start the Conversation
Connect with Our Cleanroom Experts
Tell us about your cleanroom requirements, project details, or service needs.
Our team will review your submission and follow-up to gather any additional information needed to develop a comprehensive quote.
Whether you’re planning a new space, preparing for certification, or addressing performance challenges, we’re here to help guide the next step.
