
Air Changes Per Hour (ACPH) Testing: Calculation and Standards
Air changes per hour (ACPH) testing measures how many times the entire volume of air in a cleanroom is replaced with filtered…
Read MorePractical guides on clean room testing, cleanroom validation, HEPA filter integrity and equipment calibration — written by the Vanavil Calibrations team.

Air changes per hour (ACPH) testing measures how many times the entire volume of air in a cleanroom is replaced with filtered…
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Airflow velocity testing measures how fast and how evenly air moves through a cleanroom or clean-air device. Air speed drives everything from…
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Fume hood testing confirms that a laboratory fume hood is safely drawing hazardous vapours, gases and dusts away from the person working…
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Biosafety cabinet testing confirms that a biosafety cabinet (BSC) is protecting the three things it is designed to protect — the operator,…
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Laminar air flow testing confirms that a laminar air flow (LAF) unit or clean bench is delivering the smooth, unidirectional, filtered air…
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Clean room environmental monitoring is the ongoing programme of measurements that keeps a controlled environment inside its cleanliness limits between formal tests.…
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Clean room performance testing is the set of measurements that confirm a controlled environment is actually performing to its designed cleanliness class.…
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A guide to clean room certification: requirements, tests, process, standards and how to get certified.
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A complete guide to clean room qualification: the IQ, OQ and PQ stages, key tests, standards and procedure.
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