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Fume Hood Testing Services

Fume Hoods safely remove and dispose of particles that may lead to harmful air quality levels, posing subsequent risk to anyone exposed.

Chemical Fume Hood Testing

Fume hoods in mission critical environments must comply with guidelines set forth in OSHA, ANSI, NFPA and ASHRAE in terms of performance and overall laboratory design. 

Lab fume hood testing entails testing the hood performance for airflow control, face velocity control and draft performance to ensure effective containment and operator safety.

A well-balanced face velocity flow is crucial to ensure efficient chemical removal whilst at the same time not over ventilating the air space.

Therma technicians undertake fume hood inspection and calibration services in accordance with NEBB standards and guidelines.

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Laboratory workers in a sterile environment

What We Do


Airflow Control Testing and Calibration


Face Velocity Testing


Small Volume Smoke Testing


Large Volume Smoke Testing

Who Do We Cater To?

Periodic Fume Hood Inspection

Frequent testing confirms that a fume hood will operate as expected under all anticipated conditions.

Alongside annual testing, a technical inspection is required following suspected damage or if any changes have been applied to the operation characteristics of the hood.

California's Lab Hood Testing Experts

Therma are accredited experts in fume hood testing and calibration. With the latest technology we ensure our clients receive concise, consistent and accurate testing every time.

Our Preventive Maintenance Services