Define Your Needs First

Before approaching vendors, make sure you can clearly define:

• What you’ll use the cleanroom for
• What cleanliness level (ISO class) your application requires
• How much space is available
• Any special needs, like temperature or humidity control, chemical resistance, or biosafety requirements

Not sure about the ISO class? A qualified cleanroom provider should advise you.

What to Ask Cleanroom Vendors

When comparing quotes or selecting a builder, ask:

• Have you built cleanrooms for [your industry]?
• Can you meet ISO 14644-1 standards?
• Will you handle design, permits, certification, and testing?
• Do you offer post-build support and maintenance?

A reputable provider will also share material specs, equipment info, and airflow/filtration strategies upfront.

 What Should Be Included in the Build?

Look for these core design features:

• HEPA/ULPA filtration matching your ISO class
• Positive or negative pressure control
• Gowning rooms and airlocks to control contamination
• Pass-through chambers for materials
• Cleanroom-rated walls, ceilings, and flooring
• Integrated utilities, lighting, and HVAC systems

Everything should be designed for low particulate shedding, easy cleaning, and long-term durability.

Testing & Certification

After construction, a cleanroom must be certified before use. This includes:

• Particle count testing
• Airflow visualization (smoke tests)
• Filter leak tests
• Air change rate and pressure differential checks

Ask if the vendor provides a final certification report and handles annual recertification.

Bonus Tips

Depending on your application, you may also want:

• ESD-safe materials for electronics work
• Humidity control for sensitive processes
• Fire suppression and emergency systems
• Custom furniture or equipment integration