Tag: HVAC Duct Airflow Measurement

September 7, 2026

HVAC Duct Airflow Measurement

Posted By: Jan Fischer

HVAC Series “Analyzing Airflow” Part 1: HVAC Duct Airflow Measurement Note: Part 2 of our HVAC Series – Analyzing Airflow outlines the use of a linear array of airflow sensors designed for multipoint experimentation where there are predefined measurement locations. Indoor environmental conditions directly affect the health, comfort and productivity of a building’s occupants, equipment longevity and […]

December 18, 2020

HEPA Filter Leakage Testing, Airflow Distribution Testing and Flow Rate Verification

Posted By: Jan Fischer

HEPA (high efficiency particulate air filters) filters and HEPA filter integrity are critical to air filtration systems in industries including pharmaceutical, semiconductor, food, and nuclear. HEPA filters are most effective when used at their rated airflow resistance and face velocity, and various standards have been implemented for certification and in-situ qualification testing of HEPA filters.

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