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ISO Certifications for Clean Rooms

What Are Clean Room ISO Classes?

ISO certifications for clean rooms were developed by the International Organization for Standardization (ISO) under its ISO 14644-1 standard. These classes essentially refer to the cleanliness of the air in a given room. Classes range from ISO Class 1 to ISO Class 9, with Class 1 being the cleanest and Class 9 being the least clean. The standard determines cleanliness based on the concentration of particles exceeding a certain size. ISO Class 1 clean rooms, for example, can exceed no more than ten 0.1-µm particles and two 0.2-µm particles per m3 of air.

Each clean room must be outfitted with its own selection of specific features in order to achieve its intended ISO class. But, ultimately, those features will depend on the intended layout of your clean room, and will therefore vary between projects.

Clean Rooms Constructed by Western Environmental

Western Environmental offers the resources to build and certify clean rooms that achieve ISO Class 4 to ISO Class 8. We’re also qualified to certify HEPA filters, laminar flow equipment and HVAC systems. This enables us to carefully tailor each project to meet the precise demands of your company and its application. But, beyond adhering to international cleanliness standards, we’re prepared to provide a range of additional services for a finished project that’s better suited for your business.

We can build clean rooms in accordance with USP 797 and USP 800 guidelines, which apply to structures used in pharmaceutical applications. Western Environmental also offers an extensive suite of testing services to help ascertain that your clean room’s performance is up to par, including:​​

  • Temperature testing

  • Humidity testing

  • Leak testing

  • Particle count surveys

  • Sound level measurement

  • Airflow balancing

  • And much more

Clean Rooms Built to Meet Your Standards

We understand the importance of ISO certifications. Honing our industry expertise for more than two decades has granted Western Environmental valuable insight into the clean room industry, and we know that the success of your facility depends on rigorous, standardized environmental controls. Contact us to learn more about clean room construction and ISO certifications, or request a quote to start your project.

Here at Western Environmental, we know the ins and outs of the clean room industry. It’s likely that your needs are drastically different than those of the next business, and that’s why we’re equipped to construct clean rooms ranging from ISO Class 4 to ISO Class 8. But, while these classifications are an essential element of the clean room building process, the idea behind them may not be common knowledge. We’ll outline the basics below.