Alnor Capture Hoods

Efficient airflow balancing underpins environmental control in life sciences. Alnor Capture Hoods help technicians measure volumetric flow directly at terminal devices, speeding commissioning and routine maintenance in cleanrooms, labs, and healthcare spaces.

Why Use a Capture Hood

• Measure volumetric flow at the source: Get supply and return values without complex calculations.
• Improve repeatability: Flow straightening and hood geometry help stabilize readings at many diffuser types.
• Work faster: Interchangeable hoods and lightweight frames keep routes efficient across large facilities.

Applications in Life Sciences

• Cleanroom balancing: Measure each supply and return to tune pressure cascades between adjacent rooms.
• Pharmacy compounding: Document terminal flows as part of USP <797>/<800> validation and routine checks.
• Laboratory ventilation: Balance general exhaust and supply to support fume hood function and comfort.
• Healthcare suites: Verify ACH targets and troubleshoot comfort or containment concerns at the room level.

Operational Guidance

• Select hood sizes that fully encompass diffuser discharge.
• Maintain a consistent seal and centered placement to reduce bypass.
• Allow for stabilization time and repeat measurements for consistency.
• Record hood size, diffuser type, and location metadata for efficient reporting.

Integrated Diagnostics

• Pair with micromanometers to capture pressure readings and perform pitot traverses, creating a complete airflow and pressure profile.
• Use logging capabilities to archive readings, trend equipment performance, and support investigations.

Service and Calibration

• Routine calibration helps maintain measurement confidence. Alnor capture hoods are supported by TSI service programs and traceable calibration options.

The Result

Alnor Capture Hoods bring speed, practicality, and repeatability to airflow balancing — key for sustaining the environmental performance that life science work demands. From new facility startup to routine rebalancing, these tools help teams translate measurements into action with clear, consistent documentation.